論文 - 山森 一人
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Emotional Japanese Words Vectorization by Emotion-Anchored Contrastive Learning 査読あり
Daisuke Amaki, Shuta Yamane, Kunihito Yamamori
Proc. Thirty-first International Symposium on Artificial Life and Robotics 2026 1225 - 1229 2026年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Cracker Identification from the embedded MAC address into TCP header 査読あり
Soma Ohashi, Kunihito Yamamori
Proc. Thirty-first International Symposium on Artificial Life and Robotics 2026 1265 - 1270 2026年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Pixel-Level anomalous behavior detection from reconstructed images by GAN 査読あり
Kazuma Masuda, Kunihito Yamamori
Proc. Thirty-first International Symposium on Artificial Life and Robotics 2026 1242 - 1247 2026年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Long-term Consistent Conversation of Interactive AI by Similar Sentence Retrieving on Differentiable Neural Computers 査読あり
Shuta Yamane, Yuma Nagatomo, Kunihito Yamamori
Proc. Thirty-first International Symposium on Artificial Life and Robotics 2026 1236 - 1241 2026年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Automatic Drive Support with Multi-tapped VLM by Dynamic Patch Selection 査読あり
Kotaro Shiiki, Yuma Nagatomo, Kunihito Yamamori
Proc. Thirty-first International Symposium on Artificial Life and Robotics 2026 1230 - 1235 2026年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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GrabCut と LAMA を用いた高環境適応型 インテリアシミュレータの実装
山村彗心，山森一人
火の国情報シンポジウム2025論文集 A-3-1 2025年3月
担当区分：責任著者 記述言語：日本語 掲載種別：研究論文（研究会，シンポジウム資料等）
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Interior layout image generation by the combination of GrabCut and Large-mask inpainting algorithm with 3D furniture models 査読あり
Seishin Yamamura, Kunihito Yamamori, Ryo SAITO
Proceedings of the Joint Symposium of The Thirtieth International Symposium on Artificial Life and Robotics (AROB 30th 2025) 1101 - 1106 2025年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Constaria: a chatbot for long-term consistent conversation 査読あり
Shuta Yamane, Daisuke Amaki, Kunihito Yamamori
Proceedings of the Joint Symposium of The Thirtieth International Symposium on Artificial Life and Robotics (AROB 30th 2025) 1117 - 1122 2025年1月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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An active listening and responding system with empathy enhancing filter using ChatGPT 査読あり
Daisuke AMAKI, Shuta YAMANE, Kunihito YAMAMORI
Proceedings of the Joint Symposium of The Thirtieth International Symposium on Artificial Life and Robotics (AROB 30th 2025) 1101 - 1106 2025年1月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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An approach for driving manner improvement by a gamepad-controlled driving simulator 査読あり
Kotaro SHIIKI, Shuta YAMANE, Kunihito YAMAMORI
Proceedings of the Joint Symposium of The Thirtieth International Symposium on Artificial Life and Robotics (AROB 30th 2025) 1107 - 1111 2025年1月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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動画中の動きを考慮したTransformerベースビデオキャプショニング
木村 航也，齊藤 燎， 山森 一人
火の国情報シンポジウム2024論文集 2024年3月
担当区分：責任著者 記述言語：日本語 掲載種別：研究論文（研究会，シンポジウム資料等）
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Twin-Encoder Approach for Automatic Video Captioning 査読あり
Koya Kimura, Ryo Saito, Kunihito Yamamori
Proceedings of 29th International Symposium on Artificial Life and Robotics 981 - 922 2024年1月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Robustness comparison of machine learning algorithms for NIDS under the same environment 査読あり
Masaki Tagawa, Kunihito Yamamori, Masaru Aikawa
Proceedings of the Joint Symposium of The Twenty-Eighth International Symposium on Artificial Life and Robotics (AROB 28th 2023) 931 - 935 2023年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Performance of Machine Learning base NIDS on Re-organized Kyoto 2016 Dataset 査読あり
Ryo Saito, Masaru Aikawa, Kunihito Yamamori
Proceedings of the Joint Symposium of The Twenty-Eighth International Symposium on Artificial Life and Robotics (AROB 28th 2023) 926 - 930 2023年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Heuristic base music arrangement suppressing on discord progression 査読あり
Kosuke Yoshida, Masaru Aikawa, Kunihito Yamamori
Proceedings of the Twenty-Seventh International Symposium on Artificial Life and Robotics 2022 1052 - 1056 2022年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Driving trajectory optimization by reinforcement learning for motorsports 査読あり
Akinobu Iwai, Masaru Aikawa, Kunihito Yamamori
Proceedings of the Twenty-Seventh International Symposium on Artificial Life and Robotics 2022 1047 - 1051 2022年1月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Study on Email Spam Classification Using Machine Learning Techniques 国際共著
Thae Ma Ma, Kunihito YAMAMORI, Masaru AIKAWA, Aye Thida
Memoirs of Faculty of Engineering, Miyazaki University 50 113 - 118 2021年9月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Network Design for Session Type NIDS 査読あり
Ryo Saito, Kunihito Yamamori, Masaru Aikawa, Kentaro Inoue
PROCEEDINGS OF THE TWENTY-SIXTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS 518 - 523 2021年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
In this paper, we propose a network design for session-type Network-based Intrusion Detection System (NIDS).
We focus on the network itself, network availability and stream data handling to achieve the practical session type NIDS. NIDS insertion cost depends on the network design, and it tends to increase. When the inserted NIDS fails, communications may be blocked depending on the insertion style. We use the Address Resolution Protocol (ARP) to reduce the cost of inserting NIDS into the network. And, our design prepares an independent controller from NIDS to improve the network vailability. After inserting the NIDS into the network, NIDS starts monitoring of the packets. And a large amount of memory is required to build a session from the packets. The proposed NIDS only focuses on the headers of some protocols to reduce memory usage. -
Tuning Support Tool forWAF Mod Security by Log Analysis with Machine Learning 査読あり
Chihiro Kudo, Kunihito Yamamori, Masaru Aikawa, Kentaro Inoue, Ryo Saito
PROCEEDINGS OF THE TWENTY-SIXTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS 539 - 543 2021年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
In this research, we develop and evaluate a tool that supports tuning work of WAF (Web Application Firewall). The tuning of WAF is very hard because a lot of new vulnerabilities are found in every day, and deep understanding of computer and network securities are required. At the tuning work, attack detection rules are set to reduce misdetections. Misdetection has two attributes, false positive and false negative. In this research, we aim to reduce false positives because WAF operators has to deal with every positive detection for secure operation of their web services. Our tool makes a classifier train by machine learning algorithm with a dataset including true positives and false positives, and the classifier obtains rules how to classify a
communication is an attack or not. When a false positive detection will occur, then our tool gives the WAF operators an advice to correct the attack detection rules. -
Reinforcement Learning Approach for Imperfect Information Games 査読あり
Akinobu Iwai, Kunihito Yamamori, Masaru Aikawa, Kentaro Inoue
PROCEEDINGS OF THE TWENTY-SIXTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS 533 - 538 2021年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
In this paper, we show whether Reinforcement Learning(RL) is effective or not for incomplete information game. We apply RL approach to a multiplayer incomplete information game ”Inferno”. RL is one of the machine learning algorithm to learn policies to choose an action of agent at the specific situation in virtual simulation environment. RL agents learn what action choices to make to win the game. RL plays the game against two different bots. We evaluate the proposed method by the score.
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Computer aided arrangements using cadences and melodic regularity 査読あり
Kosuke Yoshida, Kunihito Yamamori, Masaru Aikawa, Kentaro Inoue
PROCEEDINGS OF THE TWENTY-SIXTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS 529 - 532 2021年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
In this paper, we aim to propose and evaluate music arrangement with computer support. We use cadences and
melodic regularity in music arrangement. Cadences are musical heuristics and rules of transition easiness from a chord to the other chord. Since a lot of music has a regularity that includes the repetition of the same melody within a song, we use regularity to add a chord progression. To evaluate our proposed method, we get our information from questionnaires. In this questionnaire,
naturalness of the music created by our method compared with the music created by cadence only. -
Delivery Route Suboptimization Combined by Map Application and Genetic Algorithm 査読あり
Yoshitaka Matsushita, Masaru Aikawa, Kentaro Inoue, Kunihito Yamamori
PROCEEDINGS OF THE TWENTY-SIXTH INTERNATIONAL SYMPOSIUM ON ARTIFICIAL LIFE AND ROBOTICS 524 - 528 2021年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
In this paper, we aim to propose and evaluate a delivery route optimization method including random redelivery
requests. An arrangement of Genetic Algorithm and enumeration method is used to determine the delivery route. Genetic algorithm and enumeration method are one of the popular solution methods to solve Traveling Salesman Problem. During the experiments, a map application will be used to obtain real distances. In the environment for experiments, absent destinations are
randomly arranged and redelivery requests also randomly occur. Experiments showed that our method could present the delivery route even if 30% of destinations were absent and 60% of those sent redelivery requests when we set the number of destinations to 20. -
Ma T.M., Yamamori K., Thida A.
2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020 324 - 326 2020年10月
担当区分：責任著者 記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020
Spam or unsolicited emails that are used by spammers can cause huge loss to both the email users and the email server. Therefore, in order to detect spam emails not to enter into our mailbox, a developed email spam classification system is required. This paper proposes two popular machine learning methods, Naïve Bayes Classifier and Support Vector Machine, to classify the emails into spam or ham based on the body or content of the emails. In Naïve Bayes Classifier, independent words are considered as features. Support Vector Machine can be used to represent an email in vector space in which each feature means one dimension. Finally, two methods are compared in terms of precision, recall, F-measure performance metrics with the aim of finding the best method.
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Fast Retinex Image Enhancement Using CUDA 国際共著
Kyi Myo Zaw, Kunihito Yamamori, Masaru Aikawa, Aye Min Myat
Memoirs of Faculty of Engineering, Miyazaki University 49 239 - 244 2020年9月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Affect of data unbalance in "Kyoto 2016 Dataset" for NIDS with machine learning 査読あり
Ryo Saito, Masaru Aikawa, Kentaro Inoue, Kunihito Yamamori
Proceedings of The Twenty-fifth International Symposium on Artificial Life and Robotics 612 - 616 2020年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Hierarchical policy gradient method with the combination of reinforcement and auxiliary learning 査読あり
Masaya Yoshida, Kentaro Inoue, Masaru Aikawa, Kunihito Yamamori
Proceedings of the 24th International Symposium on Artificial Life and Robotics 706 - 710 2019年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
we aim to improve learning efficiency of reinforcement learning by hierarchical combination of Proximal
Policy Optimization (PPO) and auxiliary tasks. PPO is a method to stabilize learning. Auxiliary tasks are used in UNsupervised
REinforcement and Auxiliary Learning (UNREAL) which is a kind of policy gradient method based on Asynchronous Advantage
Actor-Critic (A3C) for high-speed learning convergence. We aim to improve learning efficiency by combining these two methods. We compare our method with previous methods using two benchmark tasks ‘Hopper’ and HumanoidStandup’ in ‘Gym’ provided by OpenAI. Experimental results showed that the proposed method achieved better performance than that by PPO. -
公開脆弱性データベースを利用した対応順位決定支援ツール
山森一人，齊藤燎，相川勝，井上健太郎
宮崎大学工学部紀要 47 305 - 309 2018年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Enhanced Home Surveillance Robot System by using Raspberry Pi and Arduino
Win Su San, Kunihito Yamamori, Masayuki Mukunoki, Than New Aung
宮崎大学工学部紀要 47 325 - 329 2018年7月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
Modern home security systems endorse monitoring and control functions in a remote fashion via devices such as laptops, PDAs, or cell phones1). This work represents a design and implementation of Wi-Fi enabled home surveillance robotic car which detects smoke, flame and intrusions discarding false positives. The robot's movement is controlled manually by the user through the developed GUI over the global internet. The communication between the robot and the user is established via the standard TCP/IP protocol and in case of emergency, the notification will be sent to the user via email. In any case, all sensory data (updated every 500 milliseconds) will be uploaded to the web site and available to the user all the time. Live feed from the camera will be viewable from any web browser.
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A novel audio fingerprinting method based on music elements for similar music retrieval 査読あり
T.Aoshima, K.Yamamori, M.Aikawa, K.Inoue
Proc. 23rd International Symposium on Artificial Life and Robotics 452 - 456 2018年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Lightweight virtual node protocol for large scale IoT device networks 査読あり
Y.Shinooka, K.Yamamori, M.Aikawa, K.Inoue
Proc. 23rd International Symposium on Artificial Life and Robotics 478 - 483 2018年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Reinforcement learning approach for smart air traffic control support system 査読あり
M.Watanabe, K.Yamamori, M.Aikawa, K.Inoue
Proc. 23rd International Symposium on Artificial Life and Robotics 457 - 461 2018年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Markov chain analysis of Leading Ones problem 査読あり
Du Y., Aoki K., Sakamoto M., Furutani H., Yamamori K.
Artificial Life and Robotics 22 ( 4 ) 443 - 448 2017年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
Evolutionary algorithms (EAs) are randomized optimization search techniques, and the theoretical study of the first hitting time is very important in the practical applications of EA. We investigate the first hitting time of Leading Ones (LO) problem theoretically on Random Local Search (RLS) algorithm and (1 + 1)EA by absorbing Markov chain. This paper reports the calculation method of the first hitting time on LO problem with (1 + 1)EA and RLS. We found that the results only depend on the length of string, and the hitting times can be given approximately by the quadratic function. In the numerical experiments, we showed the agreement between the results of the practical calculation and the theoretical results. Our results give the good example to predict the running time of the practical EA calculations by Markov chain method.
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SVMとニューラルネットワークを用いた手書き数字の３段階認識法
山森一人，井野誠也，相川勝
宮崎大学工学部紀要 ( 46 ) 299 - 302 2017年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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TSPにおける異種交叉型異文化島モデルの求解性能評価
山森一人，図師悠佑，相川勝
宮崎大学工学部紀要 ( 46 ) 317 - 320 2017年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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視野制限環境下での追跡問題における強化学習の学習効率向上法
山森一人，吉田雅也，相川勝
宮崎大学工学部紀要 ( 46 ) 313 - 316 2017年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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平行平均畳み込み処置とドロップアウトによる畳み込みニューラルネットワークの汎化能力向上
山森一人，長野泰久，相川勝
宮崎大学工学部紀要 ( 46 ) 309 - 312 2017年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Improving Software Development in Business Operation Effectively Approached by CMMI
Hnin Thandar Tun, T. Katayama, K. Yamamori, and Khine Khine Oo
宮崎大学工学部紀要 ( 46 ) 285 - 290 2017年7月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Early Detection of Lung Cancer by Artificial Neural Network and Fuzzy Inference System
Khaing Zin Htwe, K. Yamamori, T. Katayama, and Tin Mar Kyi
宮崎大学工学部紀要 ( 46 ) 321 - 326 2017年7月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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犠打と犠飛を考慮したOERA改良モデルによる日本プロ野球打者の評価
山森一人，大塚蒼，相川勝
宮崎大学工学部紀要 ( 46 ) 303 - 307 2017年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Markov chain analysis of Leading Ones Problem 査読あり
Yifei Du, Kenji Aoki, Makoto Sakamoto, Hiroshi Furutani, and Kunihito Yamamori
Proceedings of the 22nd International Symposium on Artificial Life and Robotics 520 - 524 2017年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Development of Vulnerability Detection tool for Web Application based on MVC Framework 査読あり
Shoichiro Saruwatari, Kunihito Yamamori, Masaru Aikawa
Proceedings of the 22nd International Symposium on Artificial Life and Robotics 525 - 529 2017年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Automated lung nodule classification by artificial neural network and fuzzy inference system
Htwe K., Yamamori K., Katayama T., Kyi T.
2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016 2016年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016
© 2016 IEEE. Lung cancer is the most cause of death from all cancers being less survival rate according to various online cancer societies. The former medical studies showed that the early diagnosis of lung cancer with screening program is the way to decline mortality rate. Radiological examination takes a tremendous time and need many medical experts having a large number of images per patient. Consequently, the accuracy of examination results mainly depends on the skills of physicians. Computer-aided Detection (CAD) in radiology can provide a functional and advantageous way to physicians aiming at improving accuracy and assisting in early detection of cancer, saving the time of radiologists in exam evaluation of cancers. Our proposed CAD system has fulfilled these all tasks combining image processing and Artificial Neuro-Fuzzy Inference System (ANFIS); with 98% sensitivity of finding true lung nodules, 94.4% sensitivity and 85% accuracy of removing false detectives, and 87% sensitivity and 78% accuracy for cancerous nodules detection.
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Business goals monitoring and control measures in CMMI
Tun H., Katayama T., Yamamori K., Oo K.
2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016 2016年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2016 IEEE 5th Global Conference on Consumer Electronics, GCCE 2016
© 2016 IEEE. Business goals monitoring and control measures are important process to achieve the target of business systematically in specified business area or project. Monitoring and control provide business goals with a measurable index to align directly in a specific area or project. In this paper, we generate all of the business process improvement goals by Capability Maturity Model Integration (CMMI) model. This procedure that is used to establish the business goals of an effective business area or related project work scope applied by Goal Question Metric (GQM) approach. This approach will be defined all of the business process goals and measurable index to perform business operation functionality. The metric program framework that is used in this paper to generate the metric plan is described, followed by a complete metric plan, which includes GQM Analysis to monitor and control measurements of defined goals systematically.
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Asymmetric mutation model in genetic algorithm 査読あり
Yifei Du, Kenji Aoki, Makoto Sakamoto, Kunihito Yamamori, Hiroshi Furutani
Artificial Life and Robotics 2016年10月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Automated Lung Nodule Classification by Artificial Neural Network and Fuzzy Inference System 査読あり
Khaing Zin Htwe, K.Yamamori, T.Katayama, Tin Mar Kyi
Proceedings of 2016 IEEE 5th Global Conference on Consumer Electronics 369 - 370 2016年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Business Goals Monitoring and Control Measures in CMMI 査読あり
Hnin Thandar Tun, T.Katayama, K.Yamamori, Khine Khine Oo
Proceedings of 2016 IEEE 5th Global Conference on Consumer Electronics 376 - 377 2016年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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くし型フィルタとMulti-class SVMによる混合音からの演奏楽器推定
山森一人，青島大河，相川勝
宮崎大学工学部紀要 ( 45 ) 211 - 216 2016年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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意思決定の階層化による強化学習の学習効率の向上
山森一人，渡部将人，相川勝
宮崎大学工学部紀要 ( 45 ) 221 - 226 2016年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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パケットカウンタを用いた出国印方式による低負荷IPトレースバック
山森一人，篠岡祐太，相川勝
宮崎大学工学部紀要 ( 45 ) 217 - 220 2016年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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National TSP向けPZ-crossover法の性能評価
関謙人,山森一人,相川勝,吉原郁夫
火の国情報シンポジウム2016論文集 ( 6C-1 ) 1 - 8 2016年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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三次元頂点情報を用いた訓練画像生成による画像分類精度の向上
十楚航,山森一人,相川勝
火の国情報シンポジウム2016論文集 ( 1B-4 ) 1 - 8 2016年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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Performance evaluation of partitioning crossover for national TSPs 査読あり
Kento SEKI, Kunihito YAMAMORI, Masaru AIKAWA, Ikuo YOSHIHARA
Proceedings of the 21st International Symposium on Artificial Life and Robotics 311 - 316 2016年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Asymmetric Mutation Model in Genetic Algorithm 査読あり
Yifei Du, Kenji Aoki, Makoto Sakamoto, Kunihito Yamamori, Hiroshi Furutani
Proceedings of the 21st International Symposium on Artificial Life and Robotics 322 - 326 2016年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Classification accuracy improvement by synthesized training images from 3D object model 査読あり
Wataru JUSO, Kunihito YAMAMORI, Masaru AIKAWA
Proceedings of the 21st International Symposium on Artificial Life and Robotics 332 - 335 2016年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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An automatic music composition by concatenating pieces based on fitness evaluation 査読あり
Takafumi YAMADA, Masaru AIKAWA, Kunihito YAMAMORI
Proceedings of the 21st International Symposium on Artificial Life and Robotics 336 - 341 2016年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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多数決に基づく公開鍵決定プロトコルによる中間者攻撃への対応とその評価
猿渡翔一郎,山森一人,相川勝
情報処理学会研究報告（インターネットと運用技術） 2015-IOT-31 ( 6 ) 1 - 6 2015年9月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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多数決に基づく公開鍵決定プロトコルによる中間者攻撃対策
山森一人，猿渡翔一郎，相川勝
宮崎大学工学部紀要 ( 44 ) 195 - 201 2015年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Natural English-Japanese Translation by Complementing of Proper Particles 査読あり
H.Haraguchi, K.Yamamori,M.Aikawa
Proc. 20th International Symposium on Artificial Life and Robotics 2015 514 - 518 2015年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Heuristic and Stochastic Approach for Automatic Music Composition 査読あり
T.Yamada, K.Yamamori, M.Aikawa
Proc. 20th International Symposium on Artificial Life and Robotics 2015 525 - 530 2015年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Pipelined multi-threading approach for high-speed global alignment on GPGPU 査読あり
T.Yamamoto, M.Aikawa, K.Yamamori
Proc. 20th International Symposium on Artificial Life and Robotics 2015 519 - 524 2015年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A detection method for snoRNA modification domain by fully indexable dictionary retrieving 査読あり
Takayuki Yamamoto, Kunihito Yamamori, Naoya Kenmochi, Masaru Aikawa
Artificial Life and Robotics 2014年8月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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HTML5を用いた天体シミュレーションによる小学生理科補助教材の開発
山森一人，坂本菜摘，相川勝
宮崎大学工学部紀要 ( 43 ) 189 - 193 2014年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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パルススケールと非和声音規則に基づく自動作曲法
山森一人，山田貴史，相川勝
宮崎大学工学部紀要 ( 43 ) 207 - 212 2014年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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マルチレベル摂動型島モデルを用いた並列HGAによるTSPの解精度向上
山森一人，関謙人，相川勝
宮崎大学工学部紀要 ( 43 ) 201 - 205 2014年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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顔認識とフリージェスチャー認識によるスマートフォン向け画面アンロック法
山森一人，十楚航，相川勝
宮崎大学工学部紀要 ( 43 ) 195 - 199 2014年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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A high-speed generation of image classification algorithm by parallel genetic image network 査読あり
Takuya YOSHIDA, Kunihito YAMAMORI, Masaru AIKAWA
Proc. 19th International Symposium on Artificial Life and Robotics 487 - 492 2014年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A detection method for snoRNA modification domain by fully indexable dictionary retrieving 査読あり
Takayuki YAMAMOTO, Kunihito YAMAMORI, Naoya KENMOCHI, Masaru AIKAWA
Proc. 19th International Symposium on Artificial Life and Robotics 481 - 486 2014年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Method for Newspaper Article Summarization Using the "Clause Box with a Case-Marking Particle" 査読あり
Hayato HARAGUCHI, Kunihito YAMAMORI, Masaru AIKAWA
Proc. 19th International Symposium on Artificial Life and Robotics 475 - 480 2014年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Self-defect-compensation simulation on pulse-coupled neural network 査読あり
Yuzuru TOMITAKA, Kunihito YAMAMORI, Masaru AIKAWA
Proc. 19th International Symposium on Artificial Life and Robotics 469 - 474 2014年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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SVM analysis of haemophilia a by using protein structure
Aoki K., Yamamori K., Sakamoto M., Furutani H.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 8227 LNCS ( PART 2 ) 681 - 688 2013年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Haemophilia A is a genetic disease resulting from deficiency of factor VIII. The database of mutations causing haemophilia A has been developed by the world wide collaboration. In this study, we examined the relation between activity of factor VIII and the missense mutation by using Support Vector Machine (SVM). As parameters, we used four physical-chemical parameters of amino acids and a structural feature. As a result, we predicted the severity of haemophilia A by using SVM in A domains of factor VIII. The structural parameters influence the prediction in A domains. © Springer-Verlag 2013.
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音楽規則に基づくピースベース自動作曲法の提案
山森一人，小原智子，相川勝
宮崎大学工学部紀要 ( 42 ) 221 - 226 2013年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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格文節ボックスに基づく新聞記事要約システムの開発
山森一人，原口隼翔，相川勝
宮崎大学工学部紀要 ( 42 ) 227 - 232 2013年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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カルマン・メディアン複合フィルタによるガウス・インパルス混合雑音抑制法
山森一人，山田義治，相川勝
宮崎大学工学部紀要 ( 42 ) 233 - 238 2013年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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クラスタ型コンピュータを用いたGenetic Image Network for Image Classificationの並列処理による高速化
山森一人，吉田卓矢，相川勝
宮崎大学工学部紀要 ( 42 ) 245 - 250 2013年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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完備辞書によるsnoRNA修飾領域の一次スクリーニング法
山森一人，山本尭之，相川勝
宮崎大学工学部紀要 ( 42 ) 239 - 244 2013年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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自律故障補償可能なパルスニューラルネットワークのハードウェア設計
冨高譲，相川勝，山森一人
電子情報通史学会技術報告 FIIS13 ( 348 ) 1 - 5 2013年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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稼働コア数の動的増減とパワーゲーティングによるLinuxサーバの低消費電力化
田本和之，相川勝，山森一人
電子情報通史学会技術報告 FIIS13 ( 347 ) 1 - 8 2013年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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構造モデルに基づく塩基配列からのboxC/D型snoRNA遺伝子検出法 査読あり
山森一人，薛晨，岩切淳一，剣持直哉，吉原郁夫
情報処理学会論文誌数理モデル化と応用（TOM） 6 ( 1 ) 79 - 89 2013年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Power Consumption Reduction by Dynamic Core-counts Control with Power Gating 査読あり
Kazuyuki TAMOTO, Kunihito YAMAMORI, Masaru AIKAWA
Proc. 18th International Symposium on Artificial Life and Robotics 49 - 52 2013年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Yamamori K., Matsuo T., Iwakiri J., Kenmochi N., Yoshihara I.
Artificial Life and Robotics 17 ( 3-4 ) 405 - 411 2013年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Artificial Life and Robotics
Small nucleolar RNAs (snoRNAs) are known that they will participate with RNA modification. However, detail functions of snoRNAs have not been clear still yet. In order to make clear functions of snoRNA, finding more snoRNAs and studying their works in cells are required. In this paper, we propose a method to detect snoRNA genes using extended-weight-updating self-organizing map (eSOM). An input vector to eSOM consists of a feature vector and a target vector. Different from a conventional SOM, a winner node for an input vector is decided by the feature vector only, and all the weights around the winner node are updated to be close to the input vector. We employ bases appearance probabilities and complementary base pair ratio for a feature vector. A target vector is a flag which is 1. 0 or 0. 0 for a positive or a negative sample, respectively. Experimental results showed our method achieved 91 and 93 % detection ratio for boxC/D and boxH/ACA type snoRNA genes, respectively. © 2012 ISAROB.
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Stochastic analysis of OneMax problem using Markov chain
Ma Q., Zhang Y., Koga K., Yamamori K., Sakamoto M., Furutani H.
Artificial Life and Robotics 17 ( 3-4 ) 395 - 399 2013年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Artificial Life and Robotics
Experimental and analytical investigations are performed for OneMax problem using Wright-Fisher model. This study investigates the distribution of the first order schema frequency in the evolution process of Genetic Algorithm (GA). Effects of mutation in GA are analyzed for the standard mutation and asymmetric mutation models. If a population is in linkage equilibrium, it can be shown that OneMax problem is equivalent to the asymmetric mutation model. Thus, we can apply theoretical results obtained in the asymmetric mutation model to OneMax problem and investigate the convergence time of GA calculation within the framework of Wright-Fisher model. © 2012 ISAROB.
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Analysis of genetic disease hemophilia B by using support vector machine
Aoki K., Yamamori K., Sakamoto M., Furutani H.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 7666 LNCS ( PART 4 ) 476 - 483 2012年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Hemophilia B is a genetic disease resulting from deficiency of factor IX. The database of mutations causing hemophilia B has been developed by the world wide collaboration. Most common mutations are amino acid changing substitutions, which we call missense mutations, and factor IX activity is closely related to the type and position of a substitution. In this study, we examined the relation between clotting level of factor IX and the type of a missense mutation by using Support Vector Machine (SVM). As parameters, we used four physical-chemical parameters of amino acids and a special flag variable representing amino acid cysteine. As a result, EGF(1st) and EGF(2nd) have the relationship in the prediction of serious or slight illness in hemophilia B. Cysteine substitution parameters influence the prediction in Activation region. © 2012 Springer-Verlag.
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Kunihito Yamamori, Takuro Matsuo, Junichi Iwakiri, Naoya Kenmochi, Ikuo Yoshihara
Artificial Life and Robotics 17 ( 3-4 ) 405 - 411 2012年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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構造モデルに基づく塩基配列からのboxC/D型snoRNA遺伝子検出法
山森一人，薛晨，岩切淳一，剣持直哉，吉原郁夫
情報処理学会研究報告 2012-MPS-90 ( 21 ) 1 - 6 2012年9月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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Linuxサーバ向け省電力設定支援ツールLPSTの開発
山森一人，椋毛雅知，吉原郁夫，相川勝
宮崎大学工学部紀要 ( 41 ) 317 - 321 2012年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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プラスチック部品の不良品判別の自動化法
吉原郁夫，東上床武史，山森一人，関根誠，安永守利
宮崎大学工学部紀要 ( 41 ) 343 - 348 2012年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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多倍長計算ソフトウェアの開発
吉原郁夫，本田詩織，坂本亜衣，山森一人，棟朝雅晴
宮崎大学工学部紀要 ( 41 ) 337 - 341 2012年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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多倍長の円周率計算
吉原郁夫，坂本亜衣，本田詩織，山森一人，棟朝雅晴
宮崎大学工学部紀要 ( 41 ) 331 - 335 2012年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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大規模TSP向けハイブリッドGAの交叉法の改善
吉原郁夫，前田晴信，山森一人，相川勝，安永守利
宮崎大学工学部紀要 ( 41 ) 327 - 329 2012年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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GPGPUを用いた並列DPマッチングによる大域アラインメントの高速化
山森一人，河野忠明，吉原郁夫，相川勝
宮崎大学工学部紀要 ( 41 ) 323 - 326 2012年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Asynchronous migration for parallel genetic programming on a computer cluster with multi-core processors 査読あり
Shingo Kurose, Kunihito Yamamori, Masaru Aikawa, Ikuo Yoshihara
Artificial Life and Robotics 16 ( 4 ) 533 - 536 2012年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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A detection method for intronic snoRNA genes using extended-weight-updating SOM with appearance probability of bases 査読あり
Takuro MATSUO, Junichi IWAKIRI, Kunihito YAMAMORI, Naoya KENMOCHI, Ikuo YOSHIHARA
Proc. 17th International Symposium on Artificial Life and Robotics 133 - 136 2012年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A method to detect intronic snoRNA genes using characteristic base patterns of DNA sequences 査読あり
Chen XUE, Junichi IWAKIRI, Kunihito YAMAMORI, Naoya KENMOCHI, Ikuo YOSHIHARA
Proc. 17th International Symposium on Artificial Life and Robotics 137 - 140 2012年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Stochastic analysis of OneMax problem by using Markov chain 査読あり
QingLian Ma, Yu-an Zhang, Kiminobu Koga, Kunihito Yamamori, Makoto Sakamoto, Hiroshi Furutani
Proc. 17th International Symposium on Artificial Life and Robotics 141 - 145 2012年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Classification of species by information entropy and visualization by self-organizing map
Nishimuta K., Yoshihara I., Yamamori K., Yasunaga M.
Proceedings of the 16th International Symposium on Artificial Life and Robotics, AROB 16th'11 371 - 374 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 16th International Symposium on Artificial Life and Robotics, AROB 16th'11
Most analysis methods of base sequences are based on the idea of pattern matching, but feature patterns known until today are supposedly a part of all the patterns hidden in base sequences. We develop a novel analyzing method based on disorder of base sequences, for example variance of data, 1/f fluctuation, information entropy and self-information. We try to classify species based on self-information of base sequences. Relations between species are visualized by self-organizing map (SOM). It is probable that neighboring regions of the SOM corresponds to near species. We compare neighboring regions of the SOM with neighboring branches of an evolutionary tree produced by the Clustal-W system. © 2011 ISAROB.
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サンプル選別と拡張重み更新型SOMを統合した たんぱく質発現量からの食品機能性推定法 査読あり
山森一人，吉原郁夫，江藤望，西山和夫
情報処理学会論文誌 数理モデル化と応用 4 ( 4 ) 69 - 80 2011年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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食品成分の網羅的な機能性評価法(<特集>食の機能・安全を科学する-おいしさから生理活性,安全性の評価まで)
江藤 望, 山森 一人, 永濱 清子, 榊原 陽一, 西山 和夫, 吉原 郁夫, 水光 正仁, 宮崎大学農学部応用生物科学科:宮崎県産業支援財団, 宮崎大学工学部情報システム工学科, 宮崎県産業支援財団, 宮崎大学農学部応用生物科学科:宮崎県産業支援財団, 宮崎大学農学部応用生物科学科, 宮崎大学工学部情報システム工学科, 宮崎大学農学部応用生物科学科:宮崎県産業支援財団
生物工学会誌 89 ( 10 ) 589 - 592 2011年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：日本生物工学会
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Markov chain analysis of genetic algorithms for 3-SAT problem
Ma Q., Zhang Y., Yamamori K., Sakamoto M., Furutani H.
Proceedings - 2011 7th International Conference on Natural Computation, ICNC 2011 2 1101 - 1105 2011年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings - 2011 7th International Conference on Natural Computation, ICNC 2011
There are many works to solve NP-complete problems by using Genetic Algorithms(GAs). The satisfiability (SAT) problem is the first proposed NP-complete problem, and plays a central role in computer science. However, the application of GAs to SAT problems may require the high performance computing, and it is necessary to obtain runtime properties of the problem. To solve this problem, we investigated the distribution of the first hitting time T for 3-SAT problems within the framework of Markov chain model. We define T as the first time of finding a solution instance in a population. We also explored the success probability S, first hitting time T̃ in the stationary distribution and survival time a in the GA on 3-SAT problem. We focused on the relations between these quantities, and got the result of T̃ = a/S. Furthermore, we give the functional form for the distributions of T and T̃, and compared them with numerical experiments. © 2011 IEEE.
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Efficient approach for simultaneous estimation of multiple health-promoting effects of foods
Nagahama K., Eto N., Yamamori K., Nishiyama K., Sakakibara Y., Iwata T., Uchida A., Yoshihara I., Suiko M.
Journal of Agricultural and Food Chemistry 59 ( 16 ) 8575 - 8588 2011年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Agricultural and Food Chemistry
The investigation of new food constituents for purposes of disease prevention or health promotion is an area of increasing interest in food science. This paper proposes a new system that allows for simultaneous estimation of the multiple health-promoting effects of food constituents using informatics. The model utilizes expression data of intracellular marker proteins as descriptors that reply to stimulation of a constituent. To estimate three health-promoting effects, namely, cancer cell growth suppression activity, antiviral activity, and antioxidant stress activity, each model was constructed using expression data of marker proteins as input data and health-promoting effects as the output value. When prediction performances of three types of mathematical models constructed by simple, multiple regressions, or artificial neural network (ANN), were compared, the most adequate model was the one constructed using an ANN. There were no statistically significant differences between the actual data and estimated values calculated by the ANN models. This system was able to simultaneously estimate health-promoting effects with reasonable precision from the same expression data of marker proteins. This novel system should prove to be an interesting platform for evaluation of the health-promoting effects of food. © 2011 American Chemical Society.
DOI： 10.1021/jf201836g
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Markov Chain Analysis of Genetic Algorithms for 3-SAT Problem 査読あり
QingLian MA, Yu-an Zhang, Kunihito Yamamori, Makoto Sakamoto, Hiroshi Furutani
Proc. 2011 Seventh International Conference on Natural Computation 1127 - 1131 2011年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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高信頼化モデル構築用サンプルを用いたGMDHによる生理活性値推定
山森 一人，春日亀 裕也，吉原 郁夫
宮崎大学工学部紀要 ( 40 ) 245 - 250 2011年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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非しきい値型活性化関数を持つ神経回路網群による生理活性推定法
近藤 弘，山森 一人，吉原 郁夫
宮崎大学工学部紀要 ( 40 ) 239 - 244 2011年7月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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An Efficient Approach for Simultaneous Estimation of the Multiple Health-Promoting Effects of Foods 査読あり
K.Nagahama, N.Eto, K.Yamamori, K.Nishiyama,Y.Sakakibara, T.Iwata, A.Uchida, I.Yoshihara, M.Suiko
Journal of Agricultural and Food Chemistry 59 ( 16 ) 8575 - 8588 2011年7月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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サンプル選別と半教師有り学習型SOMを統合したたんぱく質発現量からの食品機能性推定法
山森一人，吉原郁夫，江藤望，西山和夫
情報処理学会研究報告 2011-MPS-83 ( 5 ) 1 - 6 2011年5月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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Development of a novel crossover of hybrid genetic algorithms for large-scale traveling salesman problems 査読あり
M.Kuroda, K.Yamamori, M.Munetomo, M.Yasunaga, I.Yoshihara
Artificial Life and Robotics 15 ( 4 ) 547 - 550 2011年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Classification of species by information entropy and visualization by self-organizing map 査読あり
Kentaro NISHIMUTA, Ikuo YOSHIHARA, Kunihito YAMAMORI, Moritoshi YASUNAGA
Proc. Sixteenth International Symposium on Artificial Life and Robotics 371 - 374 2011年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Asynchronous migration for parallel genetic programming on computer cluster with multi-core processers 査読あり
Shingo KUROSE, Kunihito YAMAMORI, Masaru AIKAWA, Ikuo YOSHIHARA
Proc. Sixteenth International Symposium on Artificial Life and Robotics 367 - 370 2011年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Neural network with exponential output neuron for estimation of physiological activities from protein expression levels 査読あり
Kazuhiro KONDO, Kunihito YAMAMORI, Ikuo YOSHIHARA
Proc. Sixteenth International Symposium on Artificial Life and Robotics 363 - 366 2011年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A design of Self-defect-compensatable hardware neuron for multi-layer neural networks
Yamamori K., Tashiro K., Kusano M., Yoshihara I.
Proceedings - IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems 82 - 89 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings - IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems
Neural network has a problem that learning time becomes so long for real world problems. To achieve fast learning, some researchers proposed to implement a neural network into Wafer Scale Integration (WSI). Since WSI uses one wafer as a parallel computer, a part of defect leads entire system fault. Therefore a defect compensation method is necessary to implement a neural network into WSI. Partial Retraining (PR) method has proposed as one of the defect compensation methods for neural network. However PR method is not verified whether it will perform well on digital hardware or not. It is also not clear how much is circuit required. In this paper we report a design of self-defect-compensatable neuron with PR method by VHDL, and evaluate it by simulations. © 2010 IEEE.
DOI： 10.1109/DFT.2010.17
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Kuroda M., Yamamori K., Munetomo M., Yasunaga M., Yoshihara I.
Artificial Life and Robotics 15 ( 4 ) 547 - 550 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Artificial Life and Robotics
This article proposes a novel crossover operator of hybrid genetic algorithms (HGAs) with a Lin-Kernighan (LK) heuristic for solving large-scale traveling salesman problems (TSPs). The proposed crossover, tentatively named sub-tour recombination crossover (SRX), collects many short sub-tours from both parents under some set of rules, and reconnects them to construct a new tour of the TSP. The method is evaluated from the viewpoint of tour quality and CPU time for ten well-known benchmarks, e. g., dj38, qa194, ..., ch71009. tsp, in the TSP website of the Georgia Institute of Technology. We compare the SRX with three conventional crossover operators, a variant of the maximal preservative crossover operator (MPX3), a variant of the greedy sub-tour crossover operator (GSX2), and a variant of the edge recombination crossover operator (ERX6), and show that the SRX succeeded in finding a better solution and running faster than the conventional methods mentioned above. © 2010 International Symposium on Artificial Life and Robotics (ISAROB).
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Kuroda M., Yamamori K., Munetomo M., Yasunaga M., Yoshihara I.
Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10 828 - 831 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10
In this paper, we propose a novel crossover operator for solving the traveling salesman problem (TSP) with a Hybrid Genetic Algorithm (HGA) involving Lin-Kernighan (LK) heuristic for local search. We call the crossover operator Sub-tour Recombination Crossover (SRX) which divides each tour of the parents into many sub-tours under some rules and reconnects sub-tours from both the parents so as to construct a new tour of TSP. The method is evaluated from the viewpoint of tour quality and CPU time for ten well-known benchmarks e.g. dj38, qa194 ... ch71009.tsp in the TSP website of Georgia Institute of Technology. We compare SRX with the conventional crossover operators; variant of the Maximal Preservative Crossover operator (MPX3), variant of the Greedy Sub-tour Crossover operator (GSX2) and variant of the Edge Recombination Crossover operator (ERX6), and show that the SRX succeeded in finding better solution and running faster than the conventional methods. © 2010 ISAROB.
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Kuroda M., Yamamori K., Munetomo M., Yasunaga M., Yoshihara I.
2010 IEEE World Congress on Computational Intelligence, WCCI 2010 - 2010 IEEE Congress on Evolutionary Computation, CEC 2010 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2010 IEEE World Congress on Computational Intelligence, WCCI 2010 - 2010 IEEE Congress on Evolutionary Computation, CEC 2010
This paper proposes a novel crossover operator for solving large-scale traveling salesman problems (TSPs) by using a Hybrid Genetic Algorithm (HGA) with Lin-Kernighan heuristic for local search and we tentatively name Zoning Crossover (Z-Cross). The outline of Z-Cross is firstly to set a zone in the travelling area according to some rules, secondly to cut edges connecting cities between inside and outside the zone, thirdly to exchange edges inside the zone of one parent and those of the other parent, and lastly to reconnect sub-tours and isolated cities, which come about in the 3rd step mentioned above, so as to construct a new tour of TSP. The method is compared with conventional three crossovers; those are the Maximal Preservative Crossover, the Greedy Sub-tour Crossover and the Edge Recombination Crossover, and evaluated from the viewpoints of tour quality and CPU time. Ten benchmarks are selected from the well-known TSP website of Georgia Institute of Technology, whose names are xqf131, xqg237, ..., sra104815. The experiments are performed ten times for each crossover and each benchmark and show that the Z-Cross succeeds in finding better solution and running faster than the conventional methods. Six benchmarks with size from 39,603 to 104,815 cities are selected from the TSP website and challenged the records of tour lengths. The Z-Cross betters the record of the problem rbz43748 and approaches to solutions less than only 0.02% over the known best solutions for five instances. © 2010 IEEE.
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Quest for genetic information hidden behind disorder in DNA sequences
Koyama Y., Nishimuta K., Yamamori K., Yasunaga M., Yoshihara I.
Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10 824 - 827 2010年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10
Most of conventional base sequences are analyzed by order of base sequences, for example, pattern matching. Pattern matching compares unknown base sequences with that of known gene to find similar patterns and to identify gene information. We try to search for hidden information in DNA sequences without pattern matching. We focus on disorder of base sequences, because disorder analysis is available, if we do not know particular function of genes. We use the exponent α of 1/f α fluctuation and self-information as indices of disorder. Our experimental data are ribosomal protein of eukaryotic species. The exponent α is calculated for three kinds of data, i.e. whole base sequences, base sequences in exon or intron. The average of α in exon regions are smaller than that in intron regions. It suggests that exon regions are somewhat more ordered than intron regions. SOM is used to look for similarity of species by self-information which is calculated for codons of base sequences. SOM shows that self-information is usable for a classification of species. © 2010 ISAROB.
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A Design of Self-defect-compensatable Hardware Neuron for Multi-layer Neural Networks 査読あり
Kunihito YAMAMORI, Keisuke TASHIRO, Masamichi KUSANO, Ikuo YOSHIHARA
Proceedings of 2010 IEEE International Symposium of Defect and Fault Tolerance in VLSI Systems 82 - 89 2010年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Proposal for Zoning Crossover of Hybrid Genetic Algorihms for Large-scale Travelling Salesman Problems 招待あり
Masafumi KURODA, Kunihito YAMAMORI, Masaharu MUNETOMO, Morotoshi YASUNAGA, Ikuo YOSHIHARA
Proceeding of the 2010 IEEE World Congress on Computational Intelligence, IEEE CEC 2010 646 - 651 2010年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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遺伝的プログラミングを用いた食品の機能性評価手法の提案
上口真由美、山森一人、吉原郁夫、西山和夫、永濱清子
火の国情報シンポジウム２０１０論文集（A-6-4） 1 - 8 2010年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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リモートメモリアクセスとマルチスレッドを併用した遺伝的プログラミングの並列化
黒瀨慎吾、上口真由美、山森一人、相川勝、吉原郁夫
火の国情報シンポジウム２０１０論文集(A-2-3) 1 - 8 2010年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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Quest for Genetic Information behind Disorder in DNA Sequences 査読あり
Yuka KOYAMA, Kentaro NISHIMUTA, Kunihito YAMAMORI, Moritoshi YASUNAGA, Ikuo YOSHIHARA
Proceedings of the fifteenth International Symposium on Artificial Life and Robotics 828 - 831 2010年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Development of A Novel Crossover of Hybrid Genetic Algorithms for Large-scale Traveling Salesman Problems 査読あり
Masafuni KURODA, Kunihito YAMAMORI, Masaharu MUNETOMO, Morotoshi YASUNAGA, Ikuo YOSHIHARA
Proceedings of the fifteenth International Symposium on Artificial Life and Robotics 832 - 835 2010年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Kuno T., Kamiguchi M., Yamamori K., Yoshihara I., Nagahama K.
Proceedings of the 14th International Symposium on Artificial Life and Robotics, AROB 14th'09 630 - 633 2009年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 14th International Symposium on Artificial Life and Robotics, AROB 14th'09
We developed a system to estimate physiological activities of foods from protein expression levels using artificial neural networks (ANNs). Since protein expression levels and physiological activities are measured in multiple times for a constituent, we employ a simple regression analysis to find appropriate correspondence between physiological activities and protein expression levels. The range of physiological activities are from 0 to Z (Z > 1), they cannot directly use training signals of ANNs because the output of a neuron is limited from zero to one. To tackle this problem, we introduce two parameters K and l to the activation function of our system like as (f(x) = K/1+e -1x ). Our system is based on three-layer ANN and back-propagation algorithm is employed as training algorithm. Experimental results showed that our system can estimate more accurate than that of ANNs with normalized training samples for antioxidant stress activity. ©ISAROB 2009.
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An Automatic Model Building for Screening Functional Foods with GP 査読あり
Kunihito Yamamori, Ikuo Yoshihara, Mayumi Kamiguchi, Kazuo Nishiyama
ICROS-SICE International Joint Conference 2009 3679 - 3684 2009年8月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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ＧＰを用いたバイオマーカ発現量からの機能性食品の生理活性値推定
上口真由美，山森一人，吉原郁夫，永濱清子
情報処理学会研究報告（バイオ情報学） 2009 ( 25 ) 21 - 24 2009年3月
記述言語：日本語 掲載種別：研究論文（その他学術会議資料等）
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Feature extraction of protein expression levels based on classification of functional foods with SOM 査読あり
Tamon Fukushima, Kunihito Yamamori, Ikuo Yoshihara, Kiyoko Nagahama
Artificial Life and Robotics 13 ( 2 ) 543 - 546 2009年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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GPを用いたバイオマーカ発現量からの機能性食品の生理活性値推定
上口 真由美, 山森 一人, 吉原 郁夫, 永濱 清子
研究報告バイオ情報学（BIO） 2009 ( 25 ) 21 - 24 2009年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人情報処理学会
GPを用いたバイオマーカ発現量からの生理活性値推定法について報告する。HepG2細胞に機能性既知の精製された食品成分を作用させてバイオマーカ発現量を測定し、GPによりモデル式を自動生成した。食品抽出物を同細胞に作用させたときのバイオマーカ発現量をこのモデル式に入力し、抗酸化ストレス・抗血管新生活性等の生理活性値の推定を行った。This research reports a new procedure to estimate physiological activity values of foods from protein expression levels using Genetic Programming(GP). Protein expression levels and physiological activities by refined constituents of foods are mesured in advance and they are used to make a model by GP. Then physiological activity values of food extracts are estimated by the above model,from their protein expression levels only.
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Development of Physiological Activity Estimation Method of Foods Using Amplitude Extended Neural Networks 査読あり
T.Kuno, M.Kamiguchi, K.Yamamori, I.Yoshihara, K.Nagahama
Proceedings of The Fourteenth International Symposium on ARTIFICIAL LIFE AND ROBOTICS 658 - 661 2009年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Togo S., Yamamori K., Yoshihara I., Nagahama K.
Proceedings of the 13th International Symposium on Artificial Life and Robotics, AROB 13th'08 853 - 856 2008年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 13th International Symposium on Artificial Life and Robotics, AROB 13th'08
This paper addresses a novel method to estimate physiological activities of functional foods from protein expression levels using Bayesian classifier. The procedure of classification is as follows. Firstly, making clear relations between physiological activity values of functional foods and protein expression levels using simple regression analysis, secondly constructing Bayesian classifier to classify constituents of foods into three classes; "positive", "neutral" or "negative". Finally, giving the protein expression levels of constituents of foods to be examined to the Bayesian classifier and finding the class which the foods will belong to. Physiological activity of the foods is expressed by the above-mentioned class. We tackle to estimate five physiological activities by using expression levels of thirteen proteins. ©ISAROB 2008.
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Feature extraction of protein expression levels based on classification of functional foods with SOM
Fukushima T., Yamamori K., Yoshihara I., Nagahama K.
Proceedings of the 13th International Symposium on Artificial Life and Robotics, AROB 13th'08 849 - 852 2008年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 13th International Symposium on Artificial Life and Robotics, AROB 13th'08
We investigate relations between physiological activities and the protein expression levels of functional foods using Self-Organizing Map (SOM). The input vectors to SOM are composed of the protein expression levels and the physiological activity. A competitive node has two kinds of weights; one is for protein expression levels, the other is for physiological activity. A winner node is decided only by the weights for protein expression levels, and all weights in each node are updated. Each node has artificially generated value of physiological activity. The nodes can he categorized by the above-mentioned physiological activity. The well-trained SOM gives us some suggestions about relations between physiological activities and the protein expression levels. ©ISAROB 2008.
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Variable-length segmental transmission line and its design guidelines
Koizumi N., Hayashi K., Yasunaga M., Yamamori K., Yoshihara I.
Artificial Life and Robotics 12 ( 1-2 ) 214 - 218 2008年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Artificial Life and Robotics
Waveform distortion is a serious problem in higher-frequency signals on printed circuit boards (PCBs). To overcome this problem, we have already proposed the segmental transmission line (STL) method, which divides transmission lines into several segments with different line widths. Each line width is adjusted to make the reflection noises cancel each other out in order to minimize the signal distortion. In this research, we first analyze the waveform reshaping mechanism of STL. Next, we apply STL to a dual in-line memory module (DIMM) clock-line for high-speed computers. The results give helpful guidelines for STL designs, which shows the efficiency of STL. © 2008 International Symposium on Artificial Life and Robotics (ISAROB).
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BPA-PR法による階層型ニューラルネットワークの故障補償能力の向上
山森 一人, 森元 聡明, 吉原 郁夫
宮崎大學工學部紀要 37 275 - 280 2008年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Some researchers have been proposed to implement neural networks into Wafer Scale Integration(WSI) to achieve fast learning. When neural networks are implemented into a WSI, it has to have a mechanism to avoid hardware defects. To compensate hardware defects, the partial retraining (PR) scheme has proposed. The performance of PR scheme depends on the weights in the neural network because PR scheme only adjusts the weights belonging to a neuron affected by the defects. In this paper, we propose back propagation with annealing scheme (BPA scheme) to improve defect compensation ratio. We show that BPA scheme achieved higher capability of defect compensation than that of conventional BP algorithm.
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ニューラルネットワークによる生理活性値推定支援システムの開発
吉原 郁夫, 川西 千尋, 山森 一人
宮崎大學工學部紀要 37 287 - 292 2008年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Recently westernized daily life has gradually changed our living circumstances and eating habits. Today most of the people are deeply concerning to functionality of foods, especially to the 3rd functionality. To know that, we had developed a proto-type system to estimate physiology activity values from protein expression levels. However, the proto- system is a little tough to operate for the analysts inexperienced in computers. This paper attempts to extend the proto-system with graphical user interface which is expectedly to let the system easier to use.
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山森 一人, 園田 光, 吉原 郁夫, 相川 勝
宮崎大學工學部紀要 37 281 - 286 2008年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Recently, computer graphics are used in various fields like movies, commercial films, etc. To generate high quality graphics, it takes much coumputing time for rendering process. So parallel computers such as cluster system are usually uesd to generate high quality graphics. In this paper, we discuss on the advantages and the disadvantages of there parallel ray-tracing algorithms; object-base parallelization, space-bace parallelization and pixel-base parallelization. Then we implement the parallel ray-tracing algorithm using pixel-base parallelization into a cluster system that has 44 processors, and evaluate the performance of the parallel ray-tracing algorithm.
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山森 一人, 上口 真由美, 吉原 郁夫
宮崎大學工學部紀要 37 269 - 273 2008年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Recent years, many researchers investigate functional foods which are reinforced useful constituents for human. These researches need to measure the physiological activities when a constituent is given to cells. However, it takes much time because the measurement of physiological activities needs many manual operations. Therefore, development of a system which can estimate the physiological activities of functional foods in short time is required. This research proposes a procedure to estimate physiological activity values of functional foods from protein expression levels. For this purpose we employ multiple regression analysis to derive an appropriate estimation function, and it is evaluated by using thirteen protein expression levels and various physiological activities.
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Variable-length segmental transmission line and its design guidelines 査読あり
Naoki Koizumi, Kazuya Hayashi, Morotoshi Yasunaga, Kunihito Yamamori, Ikuo Yoshihara
Artificial Life and Robotics 12 214 - 218 2008年5月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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D-1-2 摂動法を併用したTSPの準最適解生成法(D-1. コンピュテーション,一般セッション)
黒田 正文, 岩切 淳一, 山森 一人, 吉原 郁夫
電子情報通信学会総合大会講演論文集 2008 ( 1 ) 2008年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人電子情報通信学会
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Feature Extraction of Protein Expression Levels Based on Classification of Functional Foods with SOM 査読あり
Tamon FUKUSHIMA, Kunihito YAMAMORI, Ikuo YOSHIHARA, Kiyoko NAGAHAMA
Proc. The Thirteenth International Symposium on Artificial Life and Robotics 2008 849 - 852 2008年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Estimating Physiological Activities of Functional Foods from Protein Expression Levels Using Bayesian Classifier 査読あり
Shunichi TOGO, Kunihito YAMAMORI, Ikuo YOSHIHARA, Kiyoko NAGAHAMA
Proc. The Thirteenth International Symposium on Artificial Life and Robotics 2008 853 - 856 2008年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A New Three-Level Tree Data Structure for Representing TSP Tours in the Lin-Kernighan Heuristic
NGUYEN Hung Dinh, YOSHIHARA Ikuo, YAMAMORI Kunihito, YASUNAGA Moritoshi
IEICE transactions on fundamentals of electronics, communications and computer sciences 90 ( 10 ) 2187 - 2193 2007年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人電子情報通信学会
Lin-Kernighan (LK) is the most powerful local search for the Traveling Salesman Problem (TSP). The choice of data structure for tour representation plays a vital role in LK's performance. Binary trees are asymptotically the best tour representation but they perform empirically best only for TSPs with one million or more cities due to a large overhead. Arrays and two-level trees are used for smaller TSPs. This paper proposes a new three-level tree data structure for tour representation. Although this structure is asymptotically not better than the binary tree structure, it performs empirically better than the conventional structures for TSPs having from a thousand to three million cities.
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A New Three-Level Tree Data Structure for Representing TSP Tours in the Lin-Kernighan Heuristic 査読あり
H.D.Nguyen, I.Yoshihara, K.Yamamori, M.Yasunaga
IEICE Transactions on Fundamentals E90-A ( 10 ) 2187 - 2193 2007年10月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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分割統治による Support Vector Machine の学習の高速化
山森 一人, 岩崎 隆, 吉原 郁夫, 相川 勝
宮崎大學工學部紀要 36 339 - 344 2007年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Item Response Theory (IRT) is a method to analyze test and test items with assumpitions on the mathematical relationship between abilities and item responses. IRT is used for developing and refining test items in many fields of education. In this work, we carried out an IRT analysis by using data obtained from two types of programming tests. We applied the two parameter logistic model with item parameters aj and bj. The item parameter aj represents the discrimination power of the jth test item, and bj estimates ability, and this is caused partially by the insufficient number of test items.
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揺らぎを含むタンパク質発現量からのニューラルネットワークによる食品の生理活性値の推定
山森 一人, 佃 晋輔, 吉原 郁夫
宮崎大學工學部紀要 36 345 - 350 2007年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Recent years, many people is attracted to keep their health through foods. So a simple and speedy method is requested to know what kinds of effects are given by the ingredient in foods for human. However, the effect of ingredient in foods is very complex and have large variance, conventional estimation methods do not be applied for this task. In this report we propose a new method that combined with neural network and synthesis of training data from a few measured values in cells. Simulation results shows that our method succeeds to estimate the physiology activity values for fourteen ingredients in foods with acceptable accuracy.
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岩切 淳一, 山森 一人, 吉原 郁夫, 相川 勝
電気学会研究会資料. IS, 情報システム研究会 2007 ( 10 ) 25 - 30 2007年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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小泉 尚己, 飛高 壮明, 吉原 郁夫, 山森 一人, 安永 守利
電気学会研究会資料. IS, 情報システム研究会 2007 ( 1 ) 5 - 9 2007年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Implementation of an effective hybrid GA for large-scale traveling salesman problems
Nguyen H., Yoshihara I., Yamamori K., Yasunaga M.
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics 37 ( 1 ) 92 - 99 2007年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
This correspondence describes a hybrid genetic algorithm (GA) to find high-quality solutions for the traveling salesman problem (TSP). The proposed method is based on a parallel implementation of a multipopulation steady-state GA involving local search heuristics. It uses a variant of the maximal preservative crossover and the double-bridge move mutation. An effective implementation of the Lin-Kernighan heuristic (LK) is incorporated into the method to compensate for the GA's lack of local search ability. The method is validated by comparing it with the LK-Helsgaun method (LKH), which is one of the most effective methods for the TSP. Experimental results with benchmarks having up to 316228 cities show that the proposed method works more effectively and efficiently than LKH when solving large-scale problems. Finally, the method is used together with the implementation of the iterated LK to find a new best tour (as of June 2, 2003) for a 1904711-city TSP challenge. © 2007 IEEE.
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Implementation of an Effective Hybrid GA for Large-Scale Traveling Salesman Problems 査読あり
H.D.Nguyen, I.Yoshihara, K.Yamamori, M.Yasunaga
IEEE Trans. Systems, Man, And Cybernetics, PART B:CYBERNETICS 37 ( 1 ) 92 - 99 2007年2月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Identification of Exon-intron Boundaries by Integration of Base-oriented Genetic Programming and Statistical Heuristics 査読あり
K.Yamamori, Y.Fujita, I.Yoshihara, M.Aikawa
Proc. Artificial Life and Robotics 2007 (AROB'07) 657 - 660 2007年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Variable-Length-Segment-Transmission-Line and its Design Guidelines 査読あり
N.Koizumi, K.Hayashi, M.Yasunaga, K.Yamamori, I.Yoshihara
Proc. Artificial Life and Robotics 2007 (AROB'07) 661 - 664 2007年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Enhancement of the Variable-Length-Transmission-Line design method for multi-point optimization
Koizumi N., Yoshihara I., Yamamori K., Yasunaga M.
2006 IEEE Congress on Evolutionary Computation, CEC 2006 142 - 148 2006年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2006 IEEE Congress on Evolutionary Computation, CEC 2006
Distortion of the waveform on Printed Circuit Board (PCBs) is a serious problem in higher-frequency signals transmission. To overcome this problem, we have already proposed segmental transmission line (STL). The STL divides transmission lines into multiple segments with different line widths, those are adjusted to reshape the signal waveform by superposition of reflected waves occurring at segment boundaries. In the previous work, we reshaped the waveform at only one point in the transmission line connected with a device at a time. This paper expands the method to reshape the waveform at two points of the devices at a time. We design a DIMM (Dual In-line Memory Module) clock-line for high-speed computers using our new method, and show effectiveness of the method. © 2006 IEEE.
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佐藤 真和, 吉原 郁夫, 山森 一人, 安永 守利
宮崎大學工學部紀要 35 263 - 268 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###The eukaryotic genome consists of two kinds of regions. One is coding region that operates to ###synthesize protein. The other is non-coding region that does not operate to synthesize protein. Most of ###DNA base sequences of eukaryotic genome are non-coding region. To find embedded information in ###non-coding region is one of the most important tasks for clarifying evolution of species. ###We analyze DNA base sequences of Dictyostelium Discoideum and ribosomal protein gene with 1/f ###noise in chaos theory.
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Estimating Physiology Activity of Functional Foods with Self-Organizing Map
Yoshihara Ikuo, Fukushima Tamon, Yamamori kunihito
宮崎大學工學部紀要 35 243 - 246 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###As interest in health and disease increases, so-called functional foods containing good-effect on ###mind and body are in the spotlight. It is necessary but time-consuming to measure body-control materials ###for estimating physiology activity. A method to estimate activity value for classification from quantity ###of protein expression is expected, because to measure quantity of protein expression is easier than to do ###physiology activity value. For estimating physiology activity value, we employ Self-Organizing Maps ###having classification ability.
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坂口 慶幸, 吉原 郁夫, 山森 一人, 剣持 直哉
宮崎大學工學部紀要 35 269 - 274 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Eukaryotic genes are composed of exons and introns. The former are translated into protein, but ###the latter are not. All the functions of introns are not necessarily clear. However, introns are believed ###to have close relations to the evolution of species, therefore to analyze introns is of great importance. ###To reveal hidden properties in introns, the concept of energy is extended and the extended energy is ###estimated based on Boltzmann distribution that is equivalent to the conditional probability. To compare ###the extended energy with that of other species tells the extended energy increases as the elapse time of ###evolutionary branches. The experiments lead us to the conclusion that the extended energy is a promising ###criterion to distinguish if there exists of common characteristics of species that have a common ancestor.
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An Efficient Job Scheduling Algorithm for Grid Environment with Communication Delay
Yamamori Kunihito, Iwakiri Junichi, Yoshihara Ikuo, Aikawa Masaru
宮崎大學工學部紀要 35 315 - 320 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###We propose two scheduling algorithm for computational grid environment. One is IJQ to improve ###general job queue scheduling algorithm. Another is ASR to reduce affect of communication delay. We ###implement a grid simulator that consists of several sites to evaluate our algorithms. The simulation result ###shows that the performance of IJQ is higher when the more jobs arrive at job queue. ASR decreased ###effects of communication delay on the computational grid environment with large communication delay.
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A Physiology Activity Value Prediction of Functional Foods Using Bayes Classifier
Yoshihara Ikuo, Tougou Syunichi, Yamamori Kunihito
宮崎大學工學部紀要 35 247 - 250 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Body-control function of foods has been appealed in recent years. For evaluating body-control ###function of foods, it is necessary to make experiments to measure quantity of ingredients of foods for ###estimating physiology activity values, and requires a lot of time. We give a new twist to estimate physi-###ology activity values from quantity of protein expression, because to measure quantity of protein expres-###sion is easier than to experiment for estimating physiology activity values. This research employs Bayes ###classifier which minimizes estimation error of physiology activity values.
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中川 匠, 吉原 郁夫, 山森 一人, 安永 守利
宮崎大學工學部紀要 35 257 - 262 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Alignment based on DP-matching is used to extract unknown feature pattern embedd ed in genome ###sequence. To extract feature pattem with base length n, complete set of similarity of c andidate pattern ###with base length N = 2, 3, ・ ・ ・ , n is required. When extending base length n, number of candidate ###pattern and execution time i ncrease exponential order O(4n+1 ). This paper propose a new faster method ###of extracting feature pattern by reusing similartiy which is calculated past step. The method enable ###extracting feature pattern with base length n = 10 to speed up as much as 9 times than conventional ###method.
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ヒューリスティクスを併用したGPによるエクソン・イントロン境界の高精度判別
藤田 祐司, 山森 一人, 吉原 郁夫, 相川 勝
宮崎大學工學部紀要 35 309 - 314 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Genetic Programming (GP) is one of a method to identify exon-intron boundaries in gene sequences. ###In conventional method, bases are represented by 2- or 4-bits length binary codes and these bits are inde-###pendently used as inputs to the identification model. Here we develop a method to generate exon-intron ###boundaries identify model by GP with the heuristics obtained by statistical characteristics. And our ###method can directly accept not the bit-encoded data, but the character data of bases. The heuristic is ###defined as the differences of appearance frequencies for bases around the "GT" and "AT", and they are ###abstracted from 8,000,000 base sequence data. We combined GP with heuristics to Generate identifica-###tion model for Exon-Intron boundaries.
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塩基列の長さと重複率に基づくSVMを用いたエクソン領域抽出精度の向上法
冨成 裕輔, 山森 一人, 吉原 郁夫, 藤田 祐二
宮崎大學工學部紀要 35 303 - 308 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###In this report, we evaluate the base-encoding methods to identify Exon-Intron boundaries by Sup-###port Vector Machine. In conventional experiments, 2-bits for 4-bits binary encoding was employed to ###describe bases. We focuced on that only the euclidean distance is used in Support Vector Machine, then ###propose three-tuple encoding which has the same euclidean distance among four encoded bases with ###small dimensions. In addition, we also show a new method how to decide the shortest sequence of bases ###to identify boundaries. Experiments showed that our method could achieve good identification ratio.
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東 祐輔, 吉浜 麻生, 吉原 郁夫, 山森 一人, 剣持 直哉
宮崎大學工學部紀要 35 275 - 280 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###The intron that does not contribute to protein synthesis has many unknown points for function and ###reason for existence, etc. It is thought that elucidation those points are useful for the clarification of the ###biological evolution and the genome function, etc. We tried analyzing intron by classification of species. ###The algorithm for classification used self-organizing map (SOM) that is able to view distribution of data ###in two-dimensional map. The using data for analysis is ribosomal protein gene that is thought useful for ###intron analysis. The codon frequency is calculated from each of transcriptional region and intron region, ###and classified species using SOM. In experimental result, it classified species in each of exon region and ###intron region. Therefore, it was understood that intron has unique information of species.
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吉原 郁夫, 高島 弘明, 山森 一人, 菅原 研
宮崎大學工學部紀要 35 251 - 256 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Discovering signs of the evolution concealed in the intron that exists in eukaryote's gene to clarify how ###the seed had evolved becomes a problem. Kind edge relation of the seed can be examined by comparing ###genomes of different seeds. It takes plenty of time to compare genomes in detail over the wide range. ###However, if the range for which it searches beforehand is understood, it is efficient. It aims to squeeze the ###range of the retrieval of the genome in this research. ###This paper proposes a method of image compression for the genome sequence and an index comparing ###seeds. Seeds are compared with compression rates corresponding to different seeds. The experiments ###reveal the compressibility is related to similarity between seeds.
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グリッド環境に対応したジョブスケジューリング法に対するマイグレーションの評価
岩切淳一, 山森 一人, 吉原 郁夫, 相川 勝
情報処理学会研究報告ハイパフォーマンスコンピューティング（HPC） 2006 ( 87 ) 85 - 90 2006年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人情報処理学会
グリッド環境でのスタベーションを回避するため，従来のスケジューリング法とマイグレーションを組み合わせた手法について性能評価を行い，最も効率良くスタベーションを回避できる手法について提案する．シミュレーションの結果，従来のLJF/First-Fit(Largest Job First/First-Fit)にマイグレーションを組み合わせたスケジューリングにより，オーバヘッドの増大を防ぎつつスタベーションを回避し，計算機の利用効率，Slowdown Ratio共に向上させることができた．We combine migration and conventional job scheduling algorithms to avoid starvation in Grid Environment, and evaluate the performance of the combinations to propose the most efficient combination for starvation. Simulation results showd that the combination of conventional LJF/FF(Largest Job First/First-Fit) with migration could avoid the starvation with small overhead of migration. Furthermore，the LJF/FF with migration could improve both utilization of computational nodes and Slowdown Ratio．
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GAによるセグメント分割配線構造のセグメント長と線幅の最適化
小泉 尚己, 吉原 郁夫, 山森 一人, 安永 守利
電子情報通信学会技術研究報告. CAS, 回路とシステム 105 ( 504 ) 25 - 30 2006年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人電子情報通信学会
プリント基板上を伝搬する信号を高周波化する際、プリント基板上信号の波形歪みが問題となっている。この問題に対し我々は、セグメントの幅をところどころ変えることにより波形整形を行うセグメント分割伝送線(STL : Segmental Transmission Line)を提案し小規模実験を行った。この方式を発展させ大規模な問題に対して適用するために、今回はセグメントの幅と長さを変化させることにより、利用できるセグメントの幅を限定した条件下で信号波形を整形する。そして、GAによる最適なセグメントの幅と長さを決める設計手法を提案する。さらに、単純化した物理モデル上で提案手法により設計した配線を作成し、その結果を検証する。
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サポート・ベクター・マシンにおける遺伝子のエクソン・イントロン境界識別に適した塩基表現
冨成 裕輔, 藤田 祐司, 山森 一人, 吉原 郁夫
電子情報通信学会技術研究報告. CAS, 回路とシステム 105 ( 503 ) 55 - 60 2006年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人電子情報通信学会
本報告では, 遺伝情報解析の有効な手段の1つであるサポート・ベクター・マシンを用いて, 遺伝子のエクソン・イントロン境界識別を行う. SVMを用いた研究の多くでは, 遺伝的プログラミングやニューラルネットワークなどによる研究と同様に各塩基のコード化には, 2変数表現, 4変数表現が用いられている. そこで, 我々はサポートベクター・マシンが学習データの識別にユークリッド距離を用いることに注目し, コード化した塩基間のユークリッド距離を均一としつつ, 変数を減らした3変数表現を提案する. さらに, 各表現でコード化された塩基列データを用い, 認識精度の比較・検討を行った. その結果, 3変数表現でも4変数表現と同様の高い識別率を得ることができた.
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塩基記号を入力とした遺伝的プログラミングによるエクソン・イントロン境界判別モデルの生成
藤田 祐司, 山森 一人, 吉原 郁夫, 相川 勝
電子情報通信学会技術研究報告. CAS, 回路とシステム 105 ( 503 ) 1 - 6 2006年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人電子情報通信学会
我々は遺伝子塩基配列中のエクソン・イントロン境界を判別する有効な手法の一つとして遺伝的プログラミング(Genetic Programming : GP)について研究を行ってきた. これまで, A, G, C, Tで表される4種の塩基記号を2または4ビット長で符号化しモデル生成を行っていたが, 各ビットを独立して入力とするため生成されたモデルは塩基記号を直接反映していなかった. 2または4ビットで符号化すると入力する候補が2倍, 4倍になるので学習モデルの生成までに多くの入力候補の組み合わせを試さなくてはならない. そこで本報告では塩基記号を直接入力とするモデルをGPにより生成する手法と生成した境界判別モデルの判別率について報告する.
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Self-Organizing Map of Species using Ribosomal Protein DNA Sequences 査読あり
Y.Higashi, M.Yoshihara, I.Yoshihara, K.Yamamori, N.Kenmochi
Proc. Artificial Life and Robotics 2006 2006年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Non-Transcriptional Region Analysis of Dectyostelium Discoideum using 1/f Noise 査読あり
M.Sato, I.Yoshihara, K.Yamamori, M.Yasunaga
Proc. Artificial Life and Robotics 2006 (AROB'06) 2006年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Variable length segmental-transmission-line and its parameter optimization based on GA
Koizumi N., Yoshihara I., Yamamori K., Yasunaga M.
2005 IEEE Congress on Evolutionary Computation, IEEE CEC 2005. Proceedings 2 1576 - 1582 2005年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2005 IEEE Congress on Evolutionary Computation, IEEE CEC 2005. Proceedings
Waveform distortion is a serious problem in higher-frequency signals on printed circuit boards (PCB). In order to overcome this problem, the segmental transmission line (STL) has already been proposed. However, the STL requires segments of wide-range widths. The wide-range line-width impedes higher optimization of waveforms and it also causes cost-increment in the PCB manufacturing. In this paper, we propose a novel STL with variable length segments in order to overcome the difficulties in previous work. We also develop a design methodology using a GA to determine the parameters for the proposed STL. We apply our new STL to the clock line in the actual PCB, and show its effectiveness compared with the previously proposed STL. © 2005 IEEE.
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Variable Length Segmental-Transmission-Line and Its Parameter Optimization based on GA 査読あり
N.Koizumi, I.Yoshihara, K.Yamamori, M.Yasunaga
Proc. 2005 IEEE Congress on Evolutionary Computation 2 1576 - 1582 2005年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Development of Exon Region Extracting Method by GMDH and GA from DNA Sequences
Ohta Kouji, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 34 275 - 280 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###A model building method based on Group Method of Data Handling (GMDH) optimized by ###GA is developed for extracting exon regions. GMDH, that is originally a method to construct ###higher order polynomial models, is extended to constructing complex logical model. ###The proposed method automatically builds a model for extraction and selects optimal ###important parts of DNA sequence..
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Extracting Transcription Regulatory Elements in Dictyostelium Discoideum
Onitani Toshiro, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 34 281 - 286 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Finding transcription regulatory elements (TREs) is one of the most important tasks in the ###field of genome informatics. The objective of this research is to extract TREs in DNA sequences of ###Dictyostelium discoideum (D.discoideum). Extracting characteristic patterns in DNA sequences is ###important to find TREs. We propose indices (Score M, Score T) to extract characteristic patterns in ###D.discoideum. Score M is proposed to extract patterns appeared in common region of DNA ###sequences. Score T is proposed to extract repeated patterns in common region of DNA sequences. ###Characteristic patterns according to Score M and Score T are extracted from non-transcribed ###region of Dictyostelium discoideum. The experimental Result shows that Score M and Score T are ###effective to extract targeted patterns.
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Identification of Exon-Intron Boundary by Hidden Markov Model and Evaluation with the Human Genome
Arimura Kazuhiko, Yoshihara Ikuo, Yamamori Kunihito
宮崎大學工學部紀要 34 269 - 274 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###It is important clarifying the function of the gene to extract exon, because exon is translated into the ###protein. In this laboratory has worked on the research of an automatic extraction of exon by using genetic ###programming (GP) and neural net work (NN). In this research, it has automatic of exon of human genome ###extracted it by using HMM as a comparison technique with these techniques. As a result, the identification ###accuracy of GT boundary became 90.7% and the identification accuracy in the AG boundary became 84.8%. ###Moreover, the comparison verification was done with HMM, GP, and NN.
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Segmentation and GA-based Optimization of Transmission-Line on Printed Circuit Board
Koizumi Naoki, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 34 263 - 268 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###The distortion of signal wave form is a major problem in higher frequency of signals on ###printed circuit board. To overcome this problem, the idea which changes transmission line width ###and positively using the reflection wave was proposed. However, it is difficult to apply realistic ###scale circuit because that method needs a lot of parameters. Thus, we propose the idea to reduce ###parameters and develop the method which decides parameters using GA. Next, we design actual ###clock line with a memory module and evaluate our new method.
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クライアント環境に依存しないPCクラスタ管理システム『CASPER』の開発
山森 一人, 栗野 勉, 吉原 郁夫, 相川 勝
宮崎大學工學部紀要 34 257 - 262 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Recently, PC clusters are usually used in many laboratories in universities and departments in com-###panies. However these small scale PC cluster systems do not have software to manage jobs and tasks. ###So the management of PC cluster system is one of the complicated work for system administrators. To ###simplify the cluster management, we developed a web-based, client independent PC cluster manage-###ment system "CASPER". Since CASPER is made by the open-source software, it can work on many ###platforms. And it only requests the computers consisting the PC cluster use the unix-based operating ###system. The usability of CASPER was evaluated by questionnaires.
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吉原 郁夫, 河野 高也, 山森 一人
宮崎大學工學部紀要 34 293 - 300 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Surfers prefer a certain range of wave height so that they can ride on waves. It is a waste of ###time for them to go to seashore, when the waves are too low or high. Development of ###forecasting system has been expected to evade wasting time. Insufficient accurate data and ###complicated relations between wave height and factors make us choose fuzzy logic. ###A forecasting system is proposed, inputs of which are wave height and wind velocity of the ###previous day and wind velocity of the previous night, and the fuzzy rules of which are obtained ###from experts' know-how. The validation test using past two-year data at Kizakihama in ###Miyazaki leads us to the conclusion that the system realizes 86% forecast accuracy.
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吉原 郁夫, 平原 慎一, 山森 一人
宮崎大學工學部紀要 34 287 - 292 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###The video based CG technique synthesizes a general picture from partially shot ###pictures. The previous research developed the method to minimize the number of ###cameras and to arrange them appropriately so as to take all parts of the walls inside the ###building using a genetic algorithm. ###This paper develops a method to select and synthesize partially shot pictures for ###obtaining composite indoor landscape at a given position. A prototype program is made ###and applied to a model building with three rooms for validation.
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ファジィ推論を用いたサーフィンのための波高予測
吉原郁夫,河野高也,山森一人
宮崎大学工学部紀要 34 293 - 300 2005年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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クライアント環境に依存しないPCクラスタ管理システム『CASPER』の開発
山森一人,栗野勉,吉原郁夫,相川勝
宮崎大学工学部紀要 34 257 - 262 2005年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Segmentation and GA-based Optimization of Transmission-Line on Printed Circuit Board
N.Koizumi,I.Yoshihara,K.Yamamori,M.Yasunaga
Memoirs of the Faculty of Engineering, Miyazaki University 34 263 - 268 2005年8月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Identification of Exon-Intron Boundary by Hidden Markov Model and Evaluation with the Human Genome
K.Arimura,I.Yoshihara,K.Yamamori
Memoirs of the Faculty of Engineering, Miyazaki University 34 269 - 274 2005年8月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Development of Exon Region Extracting Method by GMDH and GA from DNA Sequences
K.Ohta,I.Yoshihara,K.Yamamori,M.Yasunaga
Memoirs of the Faculty of Engineering, Miyazaki University 34 275 - 280 2005年8月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Extracting Transcription Regulatory Elements in Dictyostelium Discoideum
T.Onitani,I.Yoshihara,K.Yamamori,M.Yasunaga
Memoirs of the Faculty of Engineering, Miyazaki University 34 281 - 286 2005年8月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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複数撮影画像からの建物内景観の合成法
吉原郁夫,平原慎一,山森一人
宮崎大学工学部紀要 34 287 - 292 2005年8月
記述言語：日本語 掲載種別：研究論文（大学，研究機関等紀要）
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Nucleotide sequence and expression of three subtypes of proopiomelanocortin mRNA in barfin flounder
Takahashi A., Amano M., Itoh T., Yasuda A., Yamanome T., Amemiya Y., Sasaki K., Sakai M., Yamamori K., Kawauchi H.
General and Comparative Endocrinology 141 ( 3 ) 291 - 303 2005年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：General and Comparative Endocrinology
Melanophore-stimulating hormone (MSH) has been shown to be associated with food intake in addition to body color change in teleosts. MSH is encoded by a proopiomelanocortin (POMC) gene together with endorphin (END). To assess the significance of MSH to biological activities, we determined the structure and evaluated the expression of POMC mRNA in barfin flounder (bf), Verasper moseri, a member of a group of teleosts, Pleuronectiformes. Three subtypes of POMC cDNAs (A, B, and C) were amplified from bf pituitary glands. These bfPOMCs contained segments for N-POMC, α-MSH, β-MSH, and β-END as do other teleost POMCs, while POMC-C showed remarkable variations in the segments corresponding to N-POMC and β-END. A phylogenetic tree of ray-finned fish POMCs constructed by the neighbor joining method revealed that the three POMC subtypes may have appeared as a result of duplication events occurring at least twice during the course of bf evolution. The first duplication may have generated the lineage leading to an ancestor of bfPOMC-A and -B and that leading to bfPOMC-C, and then the lineage of bfPOMC-A may have diverged from that of bfPOMC-B. All peptides flanked by processing signals excluding N-POMC-C (1-14) were identified in a single pituitary extract by mass spectrometry, and the cDNAs of three POMCs were amplified from a single pituitary by reverse transcription polymerase chain reaction. These results demonstrated that the three POMC genes are expressed in a single individual. While the bfPOMC-A gene was exclusively expressed in the pituitary, the bfPOMC-B and -C genes were expressed in non-pituitary tissues such as brain, gill, heart, spleen, liver, stomach, intestine, testis, muscle, blood, and skin in addition to the pituitary. The expression levels of the POMC-A, -B, and -C genes in pituitary neurointermediate lobe were greater in the fish reared with a black background than the fish reared with a white background, indicating that MSH derived from all of the three bfPOMC genes was associated with body color change. No difference was observed in the expression levels of bfPOMC-C in the brain in response to feeding status. © 2005 Elsevier Inc. All rights reserved.
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Optimization of camera positions for taking all indoor sceneries by GA 査読あり
Y.Tominari, T.Nakagawa, K.Yamamori, I.Yoshihara, H.Takeda
Proc. Artificial Life and Robotics 2005 GS8-1 2005年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Multi-modal Neural Network with Single-State Predictions for Protein Secondary Structure 査読あり
H.Zhu, I.Yoshihara, K.Yamamori, M.Yasunaga
The International Journal of Artificial Life and Robotics 8 ( 2 ) 168 - 173 2004年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Gmdh-based Model Optimized by GA for Extracting Exon Regions from DNA Sequences
K.Ohta, I.Yoshihara, K.Yamamori, M.Yasunaga
Proc. Simulated Evolution and Learning 2004 SWP-8-2 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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GMDH-GA Hybrid Model Extracting Exon Region from DNA Sequences
Ohta Kouji, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 33 289 - 294 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###A model building method based on Group Method of Data Handling (GMDH) optimized by ###GA is developed for extracting exon regions. GMDH, that is originally a method to construct ###higher order polynomial model, is extended to constructing higher order logical model. ###The model built by proposed method is compared with Genetic Programming (GP)-based ###model as to the extraction rate of best, worst and average. The proposed method is superior to GP ###as to extraction rate of all for intron-exon boundary.
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Onitani Toshiro, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 33 301 - 306 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Finding transcription regulatory pattern of Dictyostelium discoideum (D. discoideum) is ###one of the most important tasks in genomics. Life cycle of D. discoideum is divided into ###vegetative stage and morphogenesis stage. The goal of this paper is to develop the technique for ###extracting the feature patterns in vegetative stage and morphogenesis stage. We calculate each ###score for candidate patterns ("aaaaaaaa"-"tttttttt") by matching these candidate patterns to ###DNA sequence of D. discoideum. The feature patterns of vegetative stage and morphogenesis ###stage are extracted by comparing scores of morphogenesis stage with those of vegetative stage. ###Experiments reveal that "cagcagca", "agcagcac", "gagagaga", "cagcatca", and ###"caccagca" appear in vegetative stage more than morphogenesis stage, and "cacaccc", ###"gtgtgtgt","acgactac","acacaccc",and "ctactact" appear in morphogenesis stage more than vegetative stage.
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Extraction of Feature Patterns Embedded in Non-transcribed Region of Dictyostelium Discoideum
T.Onitani, I.Yoshihara, K.Yamamori, M.Yasunaga
Proc. Simulated Evolution and Learning 2004 SWP-8-1 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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High-speed Generation of Logic Function to Identify Exon-Intron Boundaries by Parallel GP
Yamamori Kunihito, Fujita Yuji, Yoshihara Ikuo, Aikawa Masaru
宮崎大學工學部紀要 33 343 - 348 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Genetic Programming (GP) is applied to various field. However, it is a problem that GP needs a ###lot of execution time for large scale problems such as genome informatics. In this paper, we focus on ###reducing computation time of GP. For this objective, we parallelize GP by island model on a personal ###computer (PC) cluster system to identify exon-intron boundaries in DNA sequences which is example ###of application. In addition, we described individuals as an one dimentional matrix to reduce the time of ###migration which is a process of island model. The paralellized GP achieved linear speedup ratio on each ###number of PC. Moreover, we show quality of solution to change on each number of PC.
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Optimal Camera Layout to Take Pictures for Indoor Landscape Using GA
Yoshihara Ikuo, Nakagawa Takumi, Yamamori Kunihito, Takeda Haruo
宮崎大學工學部紀要 33 295 - 300 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Taking pictures including all the walls and materials is necessary to make video-based CG of indoor ###landscapes. These pictures must have a variety of conditions such as a distance between camera and wall, ###overlap of pictures to compose CG and so on. This paper treats a building as two dimensional model and ###finds layout which camera can take all the parts of the walls in the building using Genetic Algorithms. ###We find such layouts and can minimize the number of cameras.
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VHDLによる学習可能な階層型ニューラルネットワークのハードウェア実装
山森 一人, 石田 二郎, 吉原 郁夫
宮崎大學工學部紀要 33 355 - 359 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Neural network has been used many applications, such as pattern or image###recognition, robot control, optimization problem and so on. However, real-world###problems need large scale neural networks, and they lead enormous computation time###for training process of neural network. To reduce the· computation time, we try to###implement neural network in a FPGA device. In this paper, we discuss on the###performance of hardware neural network from the viewpoint of the processing speed###and the scale of the circuit. The trainable hardware neural network used 117,876 cells###in FPGA, and it could train the four training patterns in 800ns on the XOR problem.
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Timetabling for Satisfying Professors' Requirements and Students' Desires using Genetic Algorithm
Yoshihara Ikuo, Sakaguchi Yoshiyuki, Yamamori Kunihito
宮崎大學工學部紀要 33 313 - 318 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Timetabling is to allocate the lectures in the time slot of a week, so as to fulfill various constraints. ###Timetable is re-created every year due to alternate professors, revision of a curriculum and so on. How-###ever, creating timetable is complicated because of a variety of constraints. This paper proposes a tech-###nique to create timetables using genetic algorithms. Timetabling problem is formulated as an optimiza-###tion problem which satisfies students' desires as much as possible and professors' requirements are ###considered as constraints. A university timetable is created using the proposed technique and compared ###with an actual timetable. The experiment shows that the proposed technique can create a timetable with ###same or higher quality as an actual timetable.
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Optimization of Discrete Camera Position for Taking All Scenery Inside Buildings by GA
Yamamori Kunihito, Tominari Yusuke, Yoshihara Ikuo, Takeda Haruo
宮崎大學工學部紀要 33 361 - 365 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Minimizing the number of cameras is search for optimal all location for taking all scenery inside ###buildings. It is necessary to take the conditions of a camera and walls into consideration. We proposed ###a GA-based method to minimize the number of cameras to take images all scenery inside buildings. ###We used an actual map, and experimented based on GA. It was able to ask for the number of a camera ###considered to be close to the minimum as a result.
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山森 一人, 平山 政宏, 吉原 郁夫
宮崎大學工學部紀要 33 349 - 354 2004年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###In recent years, identification of persons becomes very important for security. ###Password has been generally used for this identification, however, persons ###sometimes forget their password, and sometimes it is stolen. Therefore a new ###technology is required for robust identification. In this paper, we use mosaic face ###images to recognize persons by self organizing map (SOM) proposed by Kohonen. ###In addition we evaluate the SOM based recognition by using of Euclid distance ###and city block distance. The SOM with the Euclid distance succeeded complete ###recognition, and the one with the city block distance achieved 96.7% recognition ###ratio.
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Performance of Parallel Island Model with Dividing Population and Training-Set 査読あり
Y.Fujita, K.Yamamori, I.Yoshihara, M.Aikawa
Proc. Simulated Evolution and Learning 2004 STA-2-1 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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GA-Based Timetabling for Satisfying Both Professors and Students Requirements 査読あり
Y.Sakaguchi, I.Yoshihara, N.Koizumi, K.Yamamori, M.Yasunaga
Proc. Simulated Evolution and Learning 2004 STA-2-3 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Hybrid GA using Edge Assembly Crossover and Lin-Kernighan Heuristic 査読あり
M.Sato, I.Yoshihara, D.H.Nguyen K.Yamamori, M.Yasunaga
Proc. Simulated Evolution and Learning 2004 STA-8-1 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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English Pronunciation Reasoning Considering Frequency of Appearance of Phonemes by Neural Network 査読あり
Y.Higashi, I.Yoshihara, H.Zhu, K.Yamamori, M.Yasunaga
Proc. Simulated Evolution and Learning 2004 SWA-8-1 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Optimal Camera Layout to Take Pictures for Indoor Landscape Using GA 査読あり
T.Nakagawa, Y.Tominari, I.Yoshihara, K.Yamamori, H.Takeda
Proc. Simulated Evolution and Learning 2004 STA-2-2 2004年10月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Multi-Modal Neural Networks for Symbolic Sequence Pattern Classification
ZHU Hanxi, YOSHIHARA Ikuo, YAMAMORI Kunihito, YASUNAGA Moritoshi
IEICE transactions on information and systems 87 ( 7 ) 1943 - 1952 2004年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人電子情報通信学会
We have developed Multi-modal Neural Networks (MNN) to improve the accuracy of symbolic sequence pattern classification. The basic structure of the MNN is composed of several sub-classifiers using neural networks and a decision unit. Two types of the MNN are proposed: a primary MNN and a twofold MNN. In the primary MNN, the sub-classifier is composed of a conventional three-layer neural network. The decision unit uses the majority decision to produce the final decisions from the outputs of the sub-classifiers. In the twofold MNN, the sub-classifier is composed of the primary MNN for partial classification. The decision unit uses a three-layer neural network to produce the final decisions. In the latter type of the MNN, since the structure of the primary MNN is folded into the sub-classifier, the basic structure of the MNN is used twice, which is the reason why we call the method twofold MNN. The MNN is validated with two benchmark tests: EPR (English Pronunciation Reasoning) and prediction of protein secondary structure. The reasoning accuracy of EPR is improved from 85.4% by using a three-layer neural network to 87.7% by using the primary MNN. In the prediction of protein secondary structure, the average accuracy is improved from 69.1% of a three-layer neural network to 74.6% by the primary MNN and 75.6% by the twofold MNN. The prediction test is based on a database of 126 non-homologous protein sequences.
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Multi-modal neural networks for symbolic sequence pattern classification
Zhu H., Yoshihara I., Yamamori K., Yasunaga M.
IEICE Transactions on Information and Systems E87-D ( 7 ) 1943 - 1952 2004年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IEICE Transactions on Information and Systems
We have developed Multi-modal Neural Networks (MNN) to improve the accuracy of symbolic sequence pattern classification. The basic structure of the MNN is composed of several sub-classifiers using neural networks and a decision unit. Two types of the MNN are proposed: a primary MNN and a twofold MNN. In the primary MNN, the sub-classifier is composed of a conventional three-layer neural network. The decision unit uses the majority decision to produce the final decisions from the outputs of the sub-classifiers. In the twofold MNN, the sub-classifier is composed of the primary MNN for partial classification. The decision unit uses a three-layer neural network to produce the final decisions. In the latter type of the MNN, since the structure of the primary MNN is folded into the sub-classifier, the basic structure of the MNN is used twice, which is the reason why we call the method twofold MNN. The MNN is validated with two benchmark tests: EPR (English Pronunciation Reasoning) and prediction of protein secondary structure. The reasoning accuracy of EPR is improved from 85.4% by using a three-layer neural network to 87.7% by using the primary MNN. In the prediction of protein secondary structure, the average accuracy is improved from 69.1% of a three-layer neural network to 74.6% by the primary MNN and 75.6% by the twofold MNN. The prediction test is based on a database of 126 non-homologous protein sequences.
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Multi-modal Neural Networks for Symbolic Sequence Classification 査読あり
H.Zhu, I.Yoshihara, K.Yamamori, M.Yasunaga
IEICE Transactions on Information Systems E87-D ( 7 ) 1943 - 1952 2004年7月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Improved GA-Based Method for Multiple Protein Sequence Alignment 査読あり
D.H.Nguyen, I.Yoshihara, K.Yamamori, M.Yasunaga
Proc. of the 2003 Congress on Evolutionary Computation 1826 - 1832 2003年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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吉原 郁夫, 山口 崇, 山森 一人, 安永 守利
宮崎大學工學部紀要 32 277 - 282 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
DNA analysis of Cellular Slime Molds are important for investigating human genome. The exponent α of the 1/fα fluctuation is used as an index of irregularity to extract features from DNA sequence. It specially pays attention to the part before and after the transcription starting point in the DNA sequence of the Sellular Slime Molds. A difference in the transcriptional region and the untranscriptional region is found by this method. 1/f fluctuation reveals a repetition pattern in the DNA sequence.
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GP-Based Method for Extracting Exons from DNA Sequence
Ohta Takehiro, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 32 289 - 294 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###This paper describes GP-based method for extracting exons from DNA sequences. The ###advantage of GP method is automatically to build a proper model for identification. We made ###experiments to identify the edges of exon (exon-intron boundary and intron-exon boundary) in ###DNA sequences and compare the average identification rate by GP method with that by ###conventional methods (Genscan, HMMgene, Genie, FGENES, Morgan, GeneMark.hmm and MZEF) with ###data set 'HMR195'. As for exon-intron boundary, GP method is superior to all the conventional ###methods and as for intron-exon boundary, GP method is superior to almost all the conventional ###methods except Genscan.
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GA-based University Timetabling for Constraint Satisfaction
Koizumi Naoki, Yoshihara Ikuo, Yamamori Kunihito
宮崎大學工學部紀要 32 283 - 288 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Timetabling is to allocate lectures in the time slots. To make timetables for universities is ###more complex than that for junior high schools or high schools, because there are many kinds of ###professors and more lectures at the university than the junior high school and the high school. ###First, we categorize timetabling constraints into two types, second, we introduce penalty to ###describe violation of constraints, so as to define the timetabling problem as an optimization ###problem, third, we make timetables for a junior high school for feasibility study, finally, we ###make timetables for university to validate our new method.
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Feature Extraction from Non-transcribed Region of Dictyostelium Discoideum using Moire Picture
Yoshihara Ikuo, Onitani Toshiro, Yamamori Kunihito, Yasunaga Moritoshi, Urushihara Hideko
宮崎大學工學部紀要 32 271 - 276 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###In recent years, DNA sequences of various living things have been deciphered actively. In ###this paper, non-transcribed region of dictyostelium discoideum used as DNA data, and the ###method to extract the feature from DNA sequence using Moirie picture is proposed. The ###proposed method extracts subsequence of high frequency of appearance at all the growth phase ###and bias of frequency of subsequence appearance at each growth phase.
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Construction of GMDH-based Prediction model using GA
Yoshihara Ikuo, Ohta Kouji, Yamamori Kunihito
宮崎大學工學部紀要 32 315 - 320 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Time series prediction by combining GMDH and Genetic Algorithm (GA) is developed. GMDH ###combines a simple nonlinear method and built model using GA automatically. The proposed model is ###compared with GP-based model with bench marks of Mackey-Glass chaos, and sunspots. The prediction ###methods are evaluated from the viewpoint of minimum prediction error and average prediction error. The ###proposed model is able to obtain the result better than other methods, or is the same than other methods.
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A New Data Structure for Lin-Kernighan Traveling Salesman Heuristic
Nguyen Hung Dinh, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 32 303 - 308 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###The Lin-Kernighan (LK) heuristic is one of the most effective and efficient algorithms for the ###Traveling Salesman Problem (TSP). However, the LK heuristic is quite complicated and has many ###choices for implementing it. Especially, the data structure for tour representation plays an important ###role in the LK's performance. Traditionally, binary trees (including splay trees) are asymptotically ###the best tour representation. Empirically, however, they are utilized only for solving problems with ###more than one million cities due to the large overhead. Arrays are suitable for solving problems ###having up to a thousand cities and two-level trees are used for the problems with a thousand to a ###million cities. This paper proposes three-level trees as a new data structure. Although this structure is ###asymptotically not better than the existing ones, it perform empirically better than the existing ones ###in the range being investigated in this study (from 10(3乗) to 10(6.5乗) cities).
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Minimizing the Number of Cameras to Take Pictures of All the Indoor Landscapes Based on GA
Yoshihara Ikuo, Arimura Kazuhiko, Yamamori Kunihito
宮崎大學工學部紀要 32 309 - 314 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Abstract ###Minimizing the number of cameras is search for optimal all location for taking indoor ###pictures all the landscapes. It is necessary to take the conditions of a camera and walls into ###consideration. We proposed a GA-based method to minimize the number of cameras to take ###pictures all the indoor landscapes. We used an actual floor map, and experimented based on ###Genetic Algorithm. It was able to ask for the number of a camera considered to be close to the ###minimum as a result.
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Mosaic Face Image Recognition on Multi-Layer Neural Network
Yamamori Kunihito, Nogawa Reo, Yoshihara Ikuo
宮崎大學工學部紀要 32 351 - 355 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Face image recognition is an impotant technology for security,communication area,etc.. In this reserch,###we try to show the optimal parameters in multi-layer neural network for mosaic face image recognition.###By using of mosaic face images,the amount of image dara can be reduced,and it can also avoid###the affect of noise.Through our experiments,a multi-layer neural network showed 98.7% of recognition###on 8 x 8 mosaic images.
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Performance of Parallel Back-Propagation Algorithm on PC Cluster System
Yamamori Kunihito, Tosa Yasushi, Yoshihara Ikuo
宮崎大學工學部紀要 32 345 - 349 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
ABSTRACT ###Neural network has been applied for many fields. However, real-world problems need large scale ###neural network, and enormous calculation time is also required for the training of neural network. So we ###made sample large-scale problem and parallelize it on used the computer cluster. This paper deals with ###parallel neural network on PC cluster system. We valuated the performance of the training-set parallel ###model on the PC cluster system. On the classification problem, the training-set parallel model was 6 ###cluster elements achieve 1.79 times faster than serial model.
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Zhu Hanxi, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 32 295 - 302 2003年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
Prediction of protein secondary structure is considered as an important step towards elucidating###its three-dimensional structure, as well as its function. We have developed a multi-modal neural###network for predicting protein secondary structure. The prediction is based on the frequency profile of###multiple sequences alignment and the position specific scoring matrices (PSSM) generated by###BLOCK. The multi-modal neural network is composed of two steps: The first step is to develop three###neural networks to predict the secondary structure states of proteins: α-helix, β-sheet and###non-regular structure respectively. The single-state prediction neural networks use a local input###window of consecutive amino acids to predict the secondary structure state of the amino acid located###at the center of the input window; The second step is to develop a decision neural network to combine###all of the single-state predictions to obtain an overall prediction on three states. This method gives an###overall accuracy of 67.8% when using seven-fold cross-validation on a database of 126###non-homologous proteins. To improve the accuracy further, majority decision is introduced to each###network for single-state prediction in the first step. By using majority decision, the overall accuracy is###improved to 70.2% with corresponding Matthews' correlation coefficients Cα =0.61, Cβ=0.48.
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Parallel Genetic Programming on PC Cluster System 査読あり
K.Yamamori, S.Matsumoto, T.Ohta, I.Yoshihara
The Seventh World Multiconference on Systems, Cybernetics and Informatics 7 259 - 264 2003年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Multi-modal Neural Net-work with Single-state Predictions for Protein Sec-ondary Structure 査読あり
H.Zhu, I.Yoshihara, K.Yamamori,M.Yasunaga
Proc. The Eighth International Symposium on Artificial Life and Robotics 2 475 - 478 2003年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Quantitative Comparison of Defect Compensation Schemes for Multi-Layer Neural Networks with Flip-Link Defects 査読あり
K.Yamamori, K.Takahashi, I.Yoshihara
Proc. The Eighth International Symposium on Artificial Life and Robotics 2 484 - 487 2003年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Improved GA-based method for multiple protein sequence alignment
Nguyen H., Yamamori K., Yoshihara I., Yasunaga M.
2003 Congress on Evolutionary Computation, CEC 2003 - Proceedings 3 1826 - 1832 2003年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：2003 Congress on Evolutionary Computation, CEC 2003 - Proceedings
In previous work, we have proposed a parallel hybrid genetic algorithm (PHGA) which can find high quality solution from the mathematical viewpoint for the multiple protein sequence alignment. We present new improvements to the PHGA. Local alignment information is added to the weighted sum-of-pairs objective function to achieve better alignment from the biological viewpoint. We also extend our method to run in parallel on a cluster of machines instead of a multi-processor machine to speed it up. © 2003 IEEE.
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Aligning Multiple Protein Sequences by Parallel Hybrid Genetic Algorithm 査読あり
D.H.Nguyen, I.Yoshihara,K.Yamamori, M.Yasunaga
Genome Informatics 2002 ( 13 ) 123 - 132 2002年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Comparison with Defect Compensation Methods for Feed-forward Neural Networks 査読あり
K.Takahashi, K.Yamamori, S.Horiguchi, I.Yoshihara
Proc. 2002 Pacific Rim International Symposium on Dependable Computing 293 - 300 2002年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Greedy Genetic Algorithms for Symmetric and Asymmetric TSPs 査読あり
D.H.Nguyen, I.YoshiharaK.Yamamori, M.Yasunaga
IPSJ Trans. on Mathematical Modeling and its Applications 43 ( SIG10 ) 165 - 175 2002年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Prediction of Protein Secondary Structure Based on Multi-Modal Neural Networks
H.Zhu, I.Yasunaga, K.Yamamori, M.Yasunaga
Proc. of the 4th Asia-Pacific Conference on Simulated Evolution and Learning crl-2132 2002年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Greedy Genetic Algorithms for Symmetric and Asymmetric TSPs (特集 進化的計算)
HUNGDINHNGUYEN, IKUO YOSHIHARA, KUNIHITO YAMAMORI, MORITOSHI YASUNAGA
情報処理学会論文誌数理モデル化と応用（TOM） 43 ( 10 ) 165 - 175 2002年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人情報処理学会
This paper presents new enhancements to a multi-population GENITOR-type Genetic Al-gorithm (GA)for solving symmetric and asymmetric Traveling Salesman Problems (TSPs). First improvements to the greedy subtour crossover are proposed so that it works more effectively at the stage of highly t individuals.Next local search heuristics are combined with GA to compensate for its lack of local search ability.The powerful Lin-Kernighan heuristic is used for symmetric TSPs and the fast 3-Opt heuristic is used for asymmetric TSPs. Various symmetric and asymmetric TSP benchmarks taken from the TSPLIB are used to validate the method.Experimental results show that the proposed method can nd optimal solutions for problems ranging in size up to 3795 cities in a reasonable computing time. From the viewpoint of quality of solution these results are the best so far obtained by applyingGA to the TSP.This paper presents new enhancements to a multi-population GENITOR-type Genetic Al-gorithm (GA)for solving symmetric and asymmetric Traveling Salesman Problems (TSPs). First,improvements to the greedy subtour crossover are proposed so that it works more effectively at the stage of highly t individuals.Next,local search heuristics are combined with GA to compensate for its lack of local search ability.The powerful Lin-Kernighan heuristic is used for symmetric TSPs and the fast 3-Opt heuristic is used for asymmetric TSPs. Various symmetric and asymmetric TSP benchmarks taken from the TSPLIB are used to validate the method.Experimental results show that the proposed method can nd optimal solutions for problems ranging in size up to 3795 cities in a reasonable computing time. From the viewpoint of quality of solution,these results are the best so far obtained by applyingGA to the TSP.
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DNA塩基配列からのエクソン領域の抽出法 : マルチモーダルニューラルネットワークの開発
上舞 慶幸, 吉原 郁夫, 山森 一人, 安永 守利
インテリジェント・システム・シンポジウム講演論文集 = FAN Symposium : fuzzy, artificial intelligence, neural networks and computational intelligence 12 385 - 390 2002年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本機械学会
Human genome consists of 3 billion base pairs, which are divided into several kinds of regions for example promoter, exon, and intron. Exons are the protein-coding DNA sequence, but introns are not. It is important to extract exons efficiently. This paper presents a multi-modal neural network to identify exon-intron boundaries and intron-exon boundaries in DNA sequences. The multi-modal neural network is composed several multi-layer neural networks and a judgment module, and gives the best identification rate (Sensitivity : Sn) 97.1%.
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GP Based Method for Identifying Exon Region in DNA Sequences 査読あり
T.Ohta, I.Yoshihara, K.Yamamori,M.Yasunaga
Proc. The 4th Asia- Pacific Conference on Simulates Evolution and Learning crl1333 2002年11月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Genetic Algorithm Approach to University Timetabling 査読あり
N.Koizumi, K.Yamamori, I.Yoshihara
Proc. The 4th Asia- Pacific Conference on Simulates Evolution and Learning, crl341(CD-ROM) crl-1341 2002年11月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Compound Defect Compensation on Multi-Layer Neural Networks by Partial Retraining Scheme 査読あり
K.Yamamori, T.Abe, S.Horiguchi,I.Yoshihara
Proc. The Third International Conference on Parallel and Distributed Computing, Applications and Technologies 403 - 408 2002年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A GA-based method for multiple protein sequence alignment
Nguyen Hung Dinh, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 31 347 - 354 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
This paper presents a parallel hybrid genetic algorithm (GA) for solving the sum-of-pairs multiple protein sequence alignment. A new chromosome representation and its corresponding genetic operators are proposed. A multi-population GENITOR-type GA is combined with local search heuristics. It is then extended to run in parallel on a multiprocessor system for speeding up. Experimental results of benchmarks from the BAliBASE show that the proposed method is superior to MSA, OMA, and SAGA methods with regard to quality of solution and running time. It can be used for finding multiple sequence alignment as well as testing cost functions.
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Evaluation of GP-based time series prediction
Ohta Takehiro, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 31 325 - 330 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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Development of a multi-modal nueral network for predicting protein secondary structure
Zhu Hanxi, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 31 331 - 338 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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Comparison with defect compensation methods for freed-forward neural networks
Yamamori Kunihito, Takahashi Kinya, Yoshihara Ikuo
宮崎大學工學部紀要 31 379 - 383 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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A parallel greedy GA for symmetric and asymmetric TSPs
Nguyen Hung Dinh, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 31 339 - 346 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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Timetabling for University Classes using Genetic Algorithm
Yoshihara Ikuo, Koizumi Naoki, Yamamori Kunihito
宮崎大學工學部紀要 31 355 - 360 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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Research on identifying intron-exon boundaries in DNA sequences
Kamimai Yoshiyuki, Yoshihara Ikuo, Yamamori Kunihito, Yasunaga Moritoshi
宮崎大學工學部紀要 31 313 - 318 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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免疫機構を導入した遺伝的アルゴリズムによる巡回セールスマン問題の解法
吉原 郁夫, 森重 伸也, 山森 一人
宮崎大學工學部紀要 31 319 - 324 2002年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：宮崎大学
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Prediction of Protein Secondary Structure by Multi-Modal Neural Networks 査読あり
H.Zhu, I.Yoshihara, K.Yamamori
Proc. International Joint Conference on Neural Networks 280 - 285 2002年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A Parallel Hybrid Genetic Algorithm for Multiple Protein Sequence Alignment 査読あり
H.D.Nguyen, I.Yoshihara,K.Yamamori, M.Yasunaga
Proc. Congress on Evolutionary Computation 309 - 314 2002年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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An Efficient Defect Compensation Scheme for Multi-Layer Neural Networks on WSI Devices 査読あり
K.Yamamori, T.Abe, S.Horiguchi, I.Yoshihara
Proc. International Joint Conference on Neural Networks 1056 - 1061 2002年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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A parallel hybrid genetic algorithm for multiple protein sequence alignment
Nguyen H., Yoshihara I., Yamamori K., Yasunaga M.
Proceedings of the 2002 Congress on Evolutionary Computation, CEC 2002 1 309 - 314 2002年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the 2002 Congress on Evolutionary Computation, CEC 2002
This paper presents a parallel hybrid genetic algorithm (GA) for solving sum-of-pairs multiple protein sequence alignment. The method is based on a multiple population GENITOR-type GA and involves local search heuristics. It is then extended to parallel to exploit the benefit of a multiprocessor system. Benchmarks from the BAliBASE library are used to validate the method. © 2002 IEEE.
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Comparison of defect compensation methods for feedforward neural networks
Takahashi K., Horiguchi S., Yamamori K., Yoshihara I.
Proceedings of IEEE Pacific Rim International Symposium on Dependable Computing, PRDC 2002-January 293 - 300 2002年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of IEEE Pacific Rim International Symposium on Dependable Computing, PRDC
© 2002 IEEE. Recently, many defect compensation methods have been proposed for feedforward neural networks implemented in hardware devices. However, there are few accurate quantitative comparisons with the performance of these defect compensation methods. In this paper, we compare the following three defect compensation methods; partial retraining (PR) scheme, whole network backpropagation (BP) retraining and FT (fault-tolerant) BP method. The BP algorithm and PR scheme retrain the neural network after defects have occurred. The FTBP method tries to obtain the weights those are robust for the defects. We can say that both the BP algorithm and PR scheme are cure-type compensation methods and the FTBP method is a precaution-type compensation method. We compare the average recognition rate, average training time and the generalization ability among these three methods in detail. The experiments show that the whole network retraining by the BP algorithm has the highest reliability on the XOR problem and face image recognition problem on the neural networks with a single broken link defect and two broken link defects.
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An efficient defect compensation scheme for multi-layer neural networks on WSI devices
Yamamori K., Abe T., Horiguchi S., Yoshihara I.
Proceedings of the International Joint Conference on Neural Networks 1 1056 - 1061 2002年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of the International Joint Conference on Neural Networks
This paper discusses on high speed off-line defect compensation scheme for trained multi-layer neural networks implemented in WSI devices. Since partial retraining scheme utilizes the redundancy of neural networks, no additional circuits is needed. The performance of partial retraining scheme will be compared with that by back-propagation algorithm on face image recognition problem.
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Aligning multiple protein sequences by parallel hybrid genetic algorithm.
Nguyen H., Yoshihara I., Yamamori K., Yasunaga M.
Genome informatics. International Conference on Genome Informatics 13 123 - 132 2002年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Genome informatics. International Conference on Genome Informatics
This paper presents a parallel hybrid genetic algorithm (GA) for solving the sum-of-pairs multiple protein sequence alignment. A new chromosome representation and its corresponding genetic operators are proposed. A multi-population GENITOR-type GA is combined with local search heuristics. It is then extended to run in parallel on a multiprocessor system for speeding up. Experimental results of benchmarks from the BAliBASE show that the proposed method is superior to MSA, OMA, and SAGA methods with regard to quality of solution and running time. It can be used for finding multiple sequence alignment as well as testing cost functions.
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Performance Evaluation of a Partial Retraining Scheme for Defective Multi-Layer Neural Networks 査読あり
K.Yamamori, T.Abe, S.Horiguchi
Proc. 6th Australasian Computer Systems Architecture Conference 138 - 145 2001年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Two-Stage Parallel Partial Retraining Scheme for Defective Multi-Layer Neural Networks 査読あり
K.Yamamori, T.Abe, S.Horiguchi
Proc. The Fourth International Conference/Exhibition on High Performance Computing in Asia-Pacific Region 2 642 - 647 2000年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Theoretical Learning-Speed Evaluation of Parallel Back-Propagation Algorithms 査読あり
K.Yamamori, T.Abe, S.Horiguchi
Systems Research and Information Systems 9 121 - 148 2000年1月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Three-Layers Neural Model between Cortical areas V1 and IT 査読あり
S.Kato, K.Yamamori, S.Horiguchi
Proc. International Conference on Artificial Neural Networks, Vol.2, 1003-1008 2 1003 - 1008 1998年8月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Theoretical Performance Evaluation of Parallel Back-Propagation Algorithms 査読あり
K.Yamamori, T.Abe, S.Horiguchi
Proc. International Conference on Parallel and Distributed Processing Techniques and Applications 2 1095 - 1102 1998年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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並列計算機上の誤差逆伝搬学習法の並列学習モデル 査読あり
山森一人，堀口進
電子情報通信学会論文誌 J80-D-II ( 2 ) 370 - 377 1998年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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超並列計算機上でのニューラルネットワークの並列学習法 査読あり
山森一人，阿部亨，堀口進
電子情報通信学会論文誌 J80-D-II ( 1 ) 350 - 353 1997年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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準概略図を用いたハイブリッドニューラルネットワークによる3次元物体認識 査読あり
猪瀬弘和，山森一人，阿部亨，堀口進
電子情報通信学会論文誌 J78-D-II ( 12 ) 1927 - 1931 1995年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Efficient design of fault-tolerant artificial neural networks 査読あり
Yamamori K., Horiguchi S., Kim J., Park S., Ham B.
IEEE International Conference on Neural Networks - Conference Proceedings 3 1487 - 1491 1995年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：IEEE International Conference on Neural Networks - Conference Proceedings
This paper focuses on the study of efficient fault-tolerant design methods in an artificial neural network (ANN) implemented on a digital VLSI chip. Due to the high fault-tolerant capability of biological neural networks, it is widely taken for granted that ANN should also be fault-tolerant. However, if a faulty neuron or a faulty link occurs in ANN currently used in engineering fields, typically ANN no longer carries out the specified performance. The ability of ANN to achieve fault-tolerance, is not inherent, but must be built in. Also, the built-in fault-tolerant mechanism must be practical and efficient enough for a VLSI chip implementation. In this paper, the Partial Retraining scheme is proposed as a design method to achieve fault-tolerance in ANN. The Partial Retraining scheme is applied to only each single neuron which is affected by the hardware fault, not an entire multi-layer network. Therefore, the convergence speed of the Partial Retraining will be much faster than that of the normal learning of the entire multi-layer network. Furthermore, the Partial Retraining can be executed parallelly. To evaluate the performance of the Partial Retraining scheme, we applied the scheme to a large scale ANN for face image recognition.
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EWS‐FLI‐1 and EWS‐ERG chimeric mRNAs in Ewing's sarcoma and primitive neuroectodermal tumor
Ida K., Kobayashi S., Taki T., Hanada R., Bessho F., Yamamori S., Sugimoto T., Ohki M., Hayashi Y.
International Journal of Cancer 63 ( 4 ) 500 - 504 1995年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：International Journal of Cancer
Thde t( 11;22)(q24;q 12) and t(21;22)(q22;q 12) are specific chromosomal translocations found in the Ewinhd family of tumors including ES, PNET and Askin tumors. In these translocations, the amino‐terminal portion of the EWS gene located in 22q 12 fuses to the carboxyl‐terminal portion of the FLI‐I gene located in 11 q24 or the ERG gene located in 21 q22, which belong to the ets oncogene super‐family of transcription activators. We investigated the chimeric mRNAs of 15 ESs (7 cell lines and 8 tumor samples) and 7 PNETs (3 cell lines and 4 tumor samples) using the RT‐PCR method and sequencing. We detected 2 types of EWS‐ERG chimeric mRNA in 2 ES cell lines and I PNET tumor sample in addition to 4 types of EWS‐FU‐1 chimeric mRNA in 11 ESs (4 cell lines and 7 tumor samples) and 4 PNETs (2 cell lines and 2 tumor samples). There seemed to be no association between the type of chimeric mRNA and clinical features such as sex, age, primary site and histopathology of the patients. All of the chimeric mRNAs are generated from in‐frame junctions and are thought to encode fusion proteins that may be the molecular mechanism involved in the Ewing family of tumors. Copyright © 1995 Wiley‐Liss, Inc., A Wiley Company
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The Efficient Design of Fault-Tolerant Artificial Neural Networks 査読あり
K.Yamamori, S.Horiguchi, J.H.Kim, Sung-K Park, Byung H.Ham
Proc. IEEE International Conference on Neural Networks 1487 - 1491 1995年11月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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The Fault-Tolerant Design of Artificial Neural Networks 査読あり
J.H.Kim, K.Yamamori, S.Horiguchi
Proc. Joint Technical Conference on Circuit/Systems, Computers and Communications 687 - 690 1995年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）