論文 - 池田 諭
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A perfect play in 4×12board of Othello 査読あり
S.Ikeda, T. Toshimori, M.sakamoto, T. Ito
Journalof Robotics,Networking and Artificial Life 9 ( 4 ) 331 - 335 2023年3月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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An Evaluation Model of Internal and External Contributions in Hierarchical Organizations 査読あり
S.Ikeda, T.Ito, M.Sakamoto, T.Ito
International Journal of Mathematical Models and Methods in Applied Sciences 9 636 - 645 2015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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The hitting and cover times of random walks on finite graphs using local degree information 査読あり
S.Ikeda, I.Kubo, M.Yamashita
Theoretical Computer Science 410 ( 1 ) 94 - 100 2009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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Dimension of Measures on Perturbed Cantor Sets 査読あり
S. Ikeda, M. Nakamura
Topology and its Applications 122 223 - 236 2002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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Fair Circulation of a Token 査読あり
S. Ikeda, I. Kubo, N. Okumoto, M. Yamashita
IEEE Transactions on Parallel and Distributed Systems 13 ( 4 ) 367 - 372 2002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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Frostman theorem for the packing measure 査読あり
S.Ikeda, M. Tamashiro
Comptes Rendus de l'Academie des Sciences - Series I - Mathematics 320 ( 12 ) 1445 - 1448 1995年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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An Efficient Structure of Organization with Complete Group Guidance 査読あり
S.Ikeda, M.Sakamoto, T.Ito
Journal of Robotics, Networking and Artificial Life Vol.6 ( (2) ) 128 - 132 2019年9月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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A Mathematical Model of Hierarchical Organization 招待あり 査読あり
S.Ikeda, T.Ito, M.Sakamoto
Proceedings of the international conference on Pure Mathematics and Applied Mathematics 423 - 432 2015年3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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Discovering the efficient organization structure: horizontal versus vertical 査読あり
S.Ikeda, T.Ito, M.Sakamoto
Artificial Life and Robotics 15 ( 4 ) 478 - 481 2011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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Random walks on graphs using local degree information 招待あり 査読あり
S.Ikeda
Book of Abstracts and Detailed Programme 5th International Workshop on Applied Probability 60 - 60 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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On a design of transition probabilities and estimates of cover times 査読あり
S.Ikeda, I. Kubo, M. Yamashita
QuantumInformation and Complexity (World Scientific Publishing Co. Pte. Ltd.) 257 - 266 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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確率的なグラフ連結性判定アルゴリズム 査読あり
池田諭、品野勇治、中森眞理雄
情報処理学会論文誌：数理モデル化と応用 43 ( SIG7 ) 52 - 58 2002年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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On loosely self-similar sets 査読あり
S.Ikeda
Hiroshima Mathematical Journal 25 ( 3 ) 527 - 540 1995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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On a fractal set with a gap between its Hausdorff dimension and box dimension 査読あり
S.Ikeda
Hiroshima Mathematical Journal 25 ( 2 ) 433 - 439 1995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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On Billingsley dimension on RN 査読あり
S. Ikeda
Hiroshima Mathematical Journal 25 ( 1 ) 123 - 142 1995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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The Antecedents of Michinoeki’s Efficiency in Japan: A Longitudinal Study 査読あり 国際共著
Satoshi Ikeda, Tsutomu Ito, Seigo Matsuno, Makoto Sakamoto, Rajiv Mehta, Takao Ito
Journal of Robotics, Networking and Artificial Life 10 ( 4 ) 368 - 273 2024年3月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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An analysis of Quoridor by reusing results from the reduced version 査読あり
Satoshi Ikeda, Takuro Iwanaga, Makoto Sakamoto, Takao Ito
Journal of Robotics, Networking and Artificial Life 10 ( 3 ) 231 - 234 2023年12月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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An Empirical Research Using Data Science Analysis of Kinetosis 査読あり
Satoshi Ikeda, Tsutomu Ito, Seigo Matsuno, Makoto Sakamoto, Takao Ito
Journal of Robotics, Networking and Artificial Life 10 ( 3 ) 242 - 246 2023年12月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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An efficient structure of organization with complete group guidance 査読あり
S.Ikeda,M.Yoshimura,M.Sakamoto,T.Ito
Proceedings of The 2019 International Conference on ARTIFICIAL LIFE AND ROBOTICS 246 - 249 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）
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Impact of local topological information on random walks on finite graphs 査読あり
S.Ikeda, I. Kubo, N. Okumoto, M. Yamashita
Proceedings ofThirtieth International Colloquium onAutomata,Languages and Programming 1054 - 1067 2003年6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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Enhancing Tourism in Takachiho through VR and AR Technologies: A Case Study on Virtual Scenic Experiences and Interactive Features 査読あり
Satoshi Ikeda, Makoto Sakamoto, Amane Takei, Takao Ito
Journal of Robotics, Networking and Artificial Life 11 ( 1 ) 36 - 39 2024年6月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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CAD Development of Moving Hula Costumes 査読あり
Satoshi Ikeda, Taketo Kamasaka, Kaoru Ohe, Makoto Sakamoto, Amane Takei, Masahiro Yokomichi, Kenji Aoki, Tsutomu Ito, Takao Ito
Journal of Robotics, Networking and Artificial Life 10 ( 4 ) 308 - 312 2024年3月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Basic Research on Virtual Technology for Educational Support Video Production 査読あり
Satoshi Ikeda, Kodai Miyamoto, Kaoru Ohe, Makoto Sakamoto, Amane Takei, Masahiro Yokomichi, Kenji Aoki, Tsutomu Ito Takao Ito
Journal of Robotics, Networking and Artificial Life 10 ( 3 ) 270 - 274 2023年12月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Hula Accessories Design for Prototype Software 査読あり
Satoshi Ikeda, Takumi Nakahara, Amane Takei, Kenji Aoki, Makoto Sakamoto, Tsutomu Ito, Takao Ito
Journal of Robotics, Networking and Artificial Life 253 - 256 2023年12月
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Changes incenter-of-pressuredynamics during upright standing related to decreased balance control in young adults: Fractal brownian motion analysis 査読あり
H.Tanaka, T.Uetake S.Kuriki, S.Ikeda
Journal of humanergology 31 1 - 11 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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Discovering the efficient organization structure: horizontal versus vertical 査読あり
S. Ikeda, T. Ito, M. Sakamoto
Proceedings of the 15th International Symposium on Artificial Life and Robotics 188 - 191 2010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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Reducing the hittingtime and the cover times of random walks on finite graphs by local topological information 招待あり 査読あり
S.Ikeda, I. Kubo, M. Yamashita
Proceedings of The 2003 International Conference on VLSI 203 - 207 2003年6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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Automatic Selection of High-Quality Dried Shiitake Mushrooms using Machine Learning 査読あり
Kaoru Ohe, Ota Hamasuna, Kakeru Takemura, Kodai Hasebe, Fumito Hamakawa, Bidesh Biswas Biki, Satoshi Ikeda, Amane Takei, Makoto Sakamoto, Kazuhide Sugimoto
Journal of Robotics, Networking and Artificial Life 10 ( 3 ) 257 - 260 2023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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An Empirical Investigation on the Association Among Tourists and Japanese Tourism Destinations 査読あり 国際共著
Tsutomu Ito, Seigo Matsuno, Takao Ito, Makoto Sakamoto, Satoshi Ikeda, Rajiv Mehta
Journal of Robotics, Networking and Artificial Life 9 ( 4 ) 358 - 362 2023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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Momentum and Its Implications in Corporate Management 査読あり
Tsutomu Ito, K.Takahashi, K.Morikawa, Takao Ito, Rajiv Mehta, M.Sakamoto, S. Ikeda
Journal of Robotics, Networking and Artificial Life, Atlantis Press Vol.2 ( Issue 4 ) 272 - 275 2016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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Euclidean Distance and Corporate Performance in the DEC Spatial Model 査読あり
T. Ito, T. Ito, K. Takahashi, R. Mehta, M. Sakamoto, S. Ikeda
INTERNATIONAL JOURNAL OF ECONOMICS AND STATISTICS 3 102 - 109 2015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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An Empirical Research on Inter-firm Capital Relationship in Yokokai Using IDE Spatial Model 査読あり
Takao Ito, Tsutomu Ito, K.Takahashi, M.Sakamoto, S.Ikeda, R.Mehta
Journal of Robotics, Networking and Artificial Life Vol.2 ( Issue 2 ) 125 - 130 2015年9月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Inter-Firm Transactional Relationships in Yokokai: An Empirical Investigation Using the IDE Spatial Model 査読あり
T. Ito, R. Mehta, T. Ito, M. Sakamoto, S. Ikeda, S. Matsuno, K. Takahashi
INTERNATIONAL JOURNAL OF MATHEMATICAL MODELS AND METHODS IN APPLIED SCIENCES 9 463 - 472 2015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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An Efficient Structure of Organization
Satoshi IKEDA, Takao ITO, Makoto SAKAMOTO
International Interdisciplinary Workshop on Robotics, Ecosystem, and Management 72 - 78 2009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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On structure ofHausdorff measures and Dimensions of some fractal sets 査読あり
S.Ikeda
広島大学大学院工学研究科情報工学専攻博士学位論文 1995年1月
記述言語：英語 掲載種別：研究論文（その他学術会議資料等）
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An efficient structure of organization with complete individual guidance 査読あり
M. Yoshimura,T. Ito, M. Sakamoto, T. Ito, Y. Shinano, S. Ikeda
Proceedings of the 2018 International Conference on Artificial Life and Robotics 264 - 267 2018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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Measuring Efficiency using Dynamic Network-Based Data Envelopment Analysis
Tsutomu Ito, Katsuhiko Takahashi, Katsumi Morikawa, Takao Ito, Rajiv Mehta, Makoto Sakamoto, Satoshi Ikeda
Journal of Robotics, Networking and Artificial Life, Atlantis Press 4 ( 3 ) 254 - 259 2017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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Reduction of the search space to find perfect play of 6×6 board Othello 査読あり
Y.Takeshita, M.sakamoto, T.Ito,T.Ito,S.Ikeda
Proceedings of the 201７ International Conference on Artificial Life and Robotics OS21 675 - 678 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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Analysis for 4×12 board of Othello 査読あり
Y.Takeshita, M.Sakamoto, T.Ito, S. Ikeda
Proceedings of the 2016 International Conference on Artificial Life and Robotics, Okinawa Convention Center, Okinawa, Japan 349 - 352 2016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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Perfect Play in Miniature Othello 査読あり
Yuki Takeshita, Makoto Sakamoto, Takao Ito and Satoshi Ikeda
Advances in Intelligent Systems and Computing(Proceedings of the Ninth International Conference on Genetic and Evolutionary Computing) 388 ( 2 ) 281 - 290 2015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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Inter-firm Transactional Relationship in Yokokai using IDE Spatial Model: An Empirical Investigation 招待あり 査読あり
T.Ito,Rajiv.Mehta,T.Ito,M.Sakamoto,S.Ikeda,S.Matuno,Y.Uchida
Proceedings of the international conference on Pure Mathematics and Applied Mathematics 32 - 36 2015年3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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Perfect analysis in miniture Othello 査読あり
Y.Takeshita, S.Ikeda, M.sakamoto, T.Ito
Proceedings of the International Conference on Artificial Life and Robotics2015 348 - 351 2015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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A comparative Study on Inter-firm Transactional Relationship between Kyohokai and Yokokai 査読あり
T. Ito, M. Sakamoto, S. Ikeda, R. Mehta, Y.Uchida
Jounal of Robotics, Networking and Artificial Life 1 ( 3 ) 179 - 183 2014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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An Empirical Examination of Inter-firm Capital Relationships in Mazda’s Yokokai using the IDE Spatial Model 査読あり
M. Sakamoto, S. Ikeda, T. Ito, R. Mehta, S. Matsuno, S. Tagawa, Victor D. Berdonosov
Journal of Robotics, Networking and Artificial Life 1 ( 2 ) 150 - 154 2014年9月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Handicap of Othello Game 査読あり
Y.Kato, S.Ikeda, T.Ito, M.Sakamoto
Proceedings of the International Conference on Artificial Life and Robotics (ICAROB2014) 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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縮小版オセロにおける完全解析
竹下祐輝, 池田諭
宮崎大学工学部紀要 ( 44 ) 221 - 228 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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An Empirical Examination of Inter-firm Capital Relationships in Mazda’s Yokokai using the IDE Spatial Model 査読あり
T. Ito, M. Sakamoto, S. Ikeda, R. Mehta, T.Ito
Proceedings of the International Conference on Artificial Life and Robotics2015 360 - 363 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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地理的条件を考慮した小選挙区画定問題の定式化
河野賢一郎, 池田諭
宮崎大学工学部紀要 ( 39 ) 333 - 338 2010年9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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摂動確率に冷却スケジュール導入したシュミレーティド・アニーリング手法について
多田淳哉, 池田諭
宮崎大学工学部紀要 ( 38 ) 295 - 300 2009年9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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Exploring Social Media's Role in Predicting Stock Market Trends 査読あり
Masatoshi Beppu, Masatomo Ide, Seita Nagashima, Satoshi Ikeda, Amane Takei, Makoto Sakamoto, Tsutomu Ito, Takao Ito
Proceedings of the 2025 International Conference on Artificial Life and Robotics (ICAROB2025) 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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A Novel Approach to Reducing Ranking Discrepancies in Tennis Based on Tournament Choices 査読あり
Masatomo Ide, Masatoshi Beppu, Kousei Yano, Satoshi Ikeda, Amane Takei, Makoto Sakamoto, Tsutomu Ito, Takao Ito
Proceedings of the 2025 International Conference on Artificial Life and Robotics (ICAROB2025) 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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A DeepInsight Method with Morphological Analysis 査読あり
T. Tomioka, S. Ikeda1, M. Sakamoto, T. Ito
Proceedings of the 2024 International Conference on Artificial Life and Robotics 2024年2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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An Analysis of Quoridor by reusing the results of reduced version 査読あり
T.Iwanaga, M.Sakamoto, T.Ito, S.Ikeda
Proceedings of the 2023 International Conference on Artificial Life and Robotics 430 - 433 2023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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Analysis of 5x5 board Quoridor 査読あり
Iwanaga T., Sakamoto M., Ito T., Ikeda S.
Proceedings of International Conference on Artificial Life and Robotics 397 - 401 2022年1月
担当区分：最終著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of International Conference on Artificial Life and Robotics
Quoridor is a perfect information game played by two or four players. The purpose of this study is to classify this game as a first move win, a second move win, or a draw. However, the analysis of the standard version of this game, 9x9 board, requires a huge amount of calculation, so in this paper, we show one of a perfect plays of a reduced version with a 5x5 board and one fence each.
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A perfect play in 4×12 board of Othello 査読あり
Toshimori T., Sakamoto M., Ito T., Ikeda S.
Proceedings of International Conference on Artificial Life and Robotics 402 - 405 2022年1月
担当区分：最終著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of International Conference on Artificial Life and Robotics
In 2015, Hiroki Takeshita started to analyze a reduced-form Othello board with a 4x6 board. Later, he analyzed the 4×8 and 4×10 boards and discovered perfect play. The analysis of 4×12 board Othello was sub-problemed by Takeshita and further sub-problemed by Toya Shotaro in 2019. In this paper, we present the solution to the remaining subproblem of 4 × 12 board Othello and the discovery of perfect play.
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M.Sakamoto, T.Ishizu, M.Hori, S.Ikeda, A.Takei, T.Ito
Journal of Robotics, Networking and Artificial Life Vol. 6 ( (4) ) 265 - 269 2020年3月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Robotics, Networking and Artificial Life
Augmented Reality (AR) is a technological advancement which brings to reality the intuitive interaction that a user is attracted to virtual objects. In this paper, we focus on intuitive manipulation of virtual objects with bare hands. Specifically, we propose a method to deform, move, and join virtual objects by intuitive gestures, and aim at intuitive interactions with virtual objects. In order to manipulate virtual objects with bare hands, the position coordinates of the user's fingers are acquired using the Leap Motion Controller. Additionally, we use Bullet Physics as an engine to represent virtual objects. On the other hand, in AR technology, since the three-dimensional (3D) model is superimposed on the image of the real space afterward, it is always displayed on the front end rather than the user's hand (occlusion problem). Thus, the user cannot perform an intuitive manipulation. We solve the occlusion problem by performing appropriate hidden surface removal. From the results of a study using data gathered from a questionnaire survey, we found support for the intuitive interaction between the user and virtual objects.
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An Analysis of Robotic Relationship between Transaction Network and Cross-shareholding Network in Yokokai 査読あり
T.Ito,T,Ito,R.Mehta,S.Matsuno,M.Sakamoto,S.Ikeda
Proceedings of The 2019 International Conference on ARTIFICIAL LIFE AND ROBOTICS 144 - 147 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）
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Some properties of k-neighborhood Template A-type two-dimensional bounded cellular acceptors 査読あり
M.Nagatomo, M.Sakamoto, H.Susaki, T.Zhang, S.Ikeda, H.Furutani,T.Ito, T.Ito, Y.Uchida, T.Yoshinaga
Journal of Robotics, Networking and Artificial Life, Atlantis Press Vol.2 ( Issue 4 ) 268 - 171 2016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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Remarks on Four-Dimensional Probabilistic Finite Automata 査読あり
M. Sakamoto, Y. Uchida, M. Nagatomo, T. Zhang, H. Susaki, T. Ito, T. Yoshinaga, S. Ikeda, M. Yokomichi, H. Furutani
International Journal of Software Engineering and its Applications 9 ( 6 ) 91 - 100 2015年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
DOI： 10.1111/rda.12555
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Some accepting power of bottom-up pyramid cellular acceptors with n-dimensional layers 査読あり
M. Sakamoto, M. Nagatomo, T. Kurogi, S. Ikeda, M. Yokomichi, H. Furutani, T. Ito, Y. Uchida, T. Yoshinaga
Jounal of Robotics, Networking and Artificial Life 1 ( 3 ) 189 - 193 2014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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Remarks on Recognizability of Four-Dimentuonal Topological Components 査読あり
M. Nagatomo, M. Sakamoto, T. Kurogi, S. Ikeda, M. Yokomichi, H. Furutani, T. Ito, Y. Uchida, T. Yoshinaga
Jounal of Robotics, Networking and Artificial Life 1 ( 3 ) 212 - 215 2014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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Homogeneous systolic pyramid automata with n-dimensional layers 査読あり
M. Sakamoto, M. Nagatomo, T. Kurogi, S. Ikeda, M. Yokomichi, H. Furutani, T. Ito, Y. Uchida, T. Yoshinaga
Jounal of Robotics, Networking and Artificial Life 1 ( 3 ) 203 - 206 2014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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Hierarchy Based on Configuration-Reader about k-Neighborhood Template A-Type Three-Dimensional Bounded Cellular Acceptor 査読あり
M. Sakamoto, M. Nagatomo, T. Zhang, X. Feng, T. Kurogi, S. Ikeda, M. Yokomichi, H. Furutani, T. Ito, Y. Uchida, T. Yoshinaga
Journal of Robotics, Networking and Artificial Life 1 ( 1 ) 80 - 84 2014年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Hierarchy Based on Neighborhood Template about k-Neighborhood Template A-Type Three-Dimensional Bounded Cellular Acceptor 査読あり
M. Sakamoto, M. Nagatomo, T. Zhang, X. Feng, T. Kurogi, S. Ikeda, M. Yokomichi, H. Furutani, T. Ito, Y. Uchida, T. Yoshinaga
Journal of Robotics, Networking and Artificial Life 1 ( 1 ) 85 - 89 2014年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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k-Neighborhood Template A-Type Three-Dimensional Bounded Cellular Acceptor 査読あり
M. Sakamoto, Y. Uchida, M. Nagatomo, T. Zhang, T. Kurogi, T. Ito, T. Yoshinaga, S. Ikeda, M. Yokomichi, H. Furutani
World Academy of Science, Engineering and Technology 82 1590 - 1595 2013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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Development of a Shrine Festival Support Application with Non-Technical Management Features: Functional Evaluation and Sustainability for Future Generations 査読あり
Masatomo Ide, Masatoshi Beppu, Satoshi Ikeda, Kaoru Ohe, Kenji Aoki, Amane Takei, Akihiro Kudo, Makoto Sakamoto
Proceedings of the 2025 International Conference on Artificial Life and Robotics (ICAROB2025) 2025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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Development of a Plant Growing Experience Application for Physically Challenged Children Using VR 査読あり
Masatoshi Beppu, Masatomo Ide, Kaoru Ohe, Satoshi Ikeda, Kenji Aoki, Amane Takei, Akihiro Kudo, Makoto Sakamoto
Proceedings of the 2025 International Conference on Artificial Life and Robotics (ICAROB2025) 2025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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Automated Classification of High-Grade Dried Shiitake Mushrooms Using Machine Learning 査読あり
Leona Kimura, Ota Hamasuna, Kaoru Ohe, Satoshi Ikeda, Kenji Aoki, Amane Takei, Akihiro Kudo, Kazuhide Sugimoto, Makoto Sakamoto
Proceedings of the 2025 International Conference on Artificial Life and Robotics (ICAROB2025) 2025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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Simplification of Rip Current Detection by Image Averaging Based on the Number of Wave Breaks 査読あり
Ota Hamasuna, Leona Kimura, Satoshi Ikeda, Kaoru Ohe, Kenji Aoki, Amane Takei, Akihiro Kudo, Makoto Sakamoto
Proceedings of the 2025 International Conference on Artificial Life and Robotics (ICAROB2025) 2025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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A Study on Improvement of Operation Accuracy by Viewpoint Switching in VR 査読あり
Masatoshi Beppu, Leona Kimura, Kaoru Ohe, Satoshi Ikeda, Makoto Sakamoto
Proceedings of the 16th International Conference On; Genetic and Evolutionary Computing (ICGEC 2024) 2024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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Depiction of 3DCG Hula Dancers for Hula Costume Design CAD Development 査読あり
Leona Kimura, Masatoshi Beppu, Satoshi Ikeda, Kaoru Ohe, Makoto Sakamoto
Proceedings of the 16th International Conference On; Genetic and Evolutionary Computing (ICGEC 2024) 2024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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Simulation of Weathering Representation using Vertex and UV Information 査読あり 国際共著
T. Ito, F. Hamakawa, K. Hasebe, S. Ikeda, A. Takei, M. Sakamoto, T. Ito
Proceedings of the 2024 International Conference on Artificial Life and Robotics 2024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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Predicting High Volatility Cryptocurrency Prices using Deep Learning 査読あり 国際共著
T. Ito, K. Hasebe, F. Hamakawa, B. B. Biki, S. Ikeda, A. Takei, M. Sakamoto, M. Riajuliislam, Sabrina B. Shital, T. Ito
Proceedings of the 2024 International Conference on Artificial Life and Robotics 2024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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Automatic Selection of High-Grade Dried Shiitake Mushrooms using Machine Learning 査読あり
O. Hamasuna, K. Takemura, K. Hasebe, F. Hamakawa, B. Biswas Biki, S. Ikeda, K. Ohe, A. Takei, M. Sakamoto, K. Sugimoto
Proceedings of the 2024 International Conference on Artificial Life and Robotics 2024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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Support for Museum Exhibition of Small Fungi using AR Technology 査読あり
K. Takemura, O. Hamasuna, F. Hamakawa, S. Ikeda, K. Ohe, A. Takei, M. Sakamoto, S. Kurogi
Proceedings of the 2024 International Conference on Artificial Life and Robotics 2024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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Analysis of Quoridor by reusing the results of reduced version
Iwanaga Takuro, Sakamoto Makoto, Ito Takao, Ikeda Satoshi
Proceedings of the 2023 International Conference on Artificial Life and Robotics 28 430 - 433 2023年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：株式会社ALife Robotics
Retrograde analysis is a representative game analysis method that first lists all legal positions and searches for the best move by analyzing from the final positions to the initial position. This method is effective for analyzing the type of game in which the same position appears many times when the game is analyzed sequentially from the initial position. However, it also has the drawback of requiring a huge amount of memory to enumerate the legal solutions. In this paper, we take up the board game "Quoridor" released by Gigamic.
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A Fundamental Study on Car Sickness Using Data Science 査読あり
T. Ito, S.Matsuno, M. Sakamoto, S. Ikeda, T. Ito
Proceedings of the 2023 International Conference on Artificial Life and Robotics 425 - 429 2023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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Prototype Software for Designing Hula Accessories 査読あり
T. Nakahara, S. Ikeda, A. Takei, K. Aoki, M. Sakamoto, T. Ito, T. Ito
Proceedings of the 2023 International Conference on Artificial Life and Robotics 334 - 347 2023年1月
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 Basic Study on Museum Exhibition Support Using AR Technology 査読あり
K. Takemura, S. Ikeda1 A. Takei, M. Yokomichi, M. Sakamoto, S. Kurogi, T. Ito, T. Ito
Proceedings of the 2023 International Conference on Artificial Life and Robotics 438 - 442 2023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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Tourism Support for Bioluminescent Fungi Using Video Technology 査読あり 国際共著
Bidesh Biswas Biki, K. Hasebe1, F. Hamakawa, S. Ikeda, A. Takei, M. Sakamoto, S. Kuro
Proceedings of the 2023 International Conference on Artificial Life and Robotics 2023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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A comparative study on Michinoeki's efficiency in Japan
Ito Tsutomu, Matsuno Seigo, Sakamoto Makoto, Ikeda Satoshi, Ito Takao
Proceedings of the 2022 International Conference on Artificial Life and Robotics 27 53 - 57 2022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） 出版者・発行元：株式会社ALife Robotics
Michinoeki is considered as one of the most successful social experiments in Japan now. A plethora of literature of Michinoeki's have been published over past decades. The authors reviewed many important and typical literatures and found that the quantitative studies are still sparse. Obviously, it is a critical issue to measure the efficiency of Michinoeki's for its further development and revitalization of the local economy. Thus, the data of Michinoeki are gathered from all Michinoeki in Japan, and the relative efficiency are calculated using DEA model for comparison. Furthermore, the managerial implication of the results is discussed in this paper.
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Basic Study on the Use of XR Technology to Support Science Education
Miyamoto Kodai, Kamasaka Taketo, Sakamoto Makoto, Yokomichi Masahiro, Ikeda Satoshi, Takei Amane, Ito Tsutomu, Ito Takao
Proceedings of the 2022 International Conference on Artificial Life and Robotics 27 392 - 397 2022年1月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：株式会社ALife Robotics
According to the results of a survey on science teaching in 2016, the percentage of students who answered that they like science is lower than other subjects. However, more than 80% of students said that they like experiments and observations. In addition, a 2019 survey on smartphone penetration showed that about 90% of students are familiar with the technology. Also, XR technology has made remarkable progress in recent years. Based on the above, I conducted this research because I thought that creating a simulation application using XR technology with smartphones would change the way we think about science classes. In this paper, we have developed a simulation application for science experiments. The subjects were asked to experience the created application and answer a questionnaire. As a result, the average score was 4 out of 5, which was not a bad result. At the same time, however, we found a problem. The problem was that since this was a simulation application, the user experience was not very good. So we wanted to make it a little easier to use. While improving the problems, I would like to create applications for other fields as well.
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Measuring the entire degree centrality in Yokokai 査読あり
T.Ito, S.Matsuno, M.Sakamoto, S.Ikeda, M.Ootani, T.Ito
The 2022 International Conference on Artificial Life and Robotics (ICAROB2022) 48 - 52 2022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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Basic Study on Design Tool of Hula Costumes 査読あり
K.Miyamoto, T.Kamasaka, M.Sakamoto, M.Yokomichi, S.Ikeda, A.Takei, T.Ito, T.Ito
The 2022 International Conference on Artificial Life and Robotics (ICAROB2022) 392 - 397 2022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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Discovering the relationship between tourists and tourist spots in Japan 査読あり
T.Ito, S.Matsuno, M.Sakamoto, S.Ikeda, T.Ito
The 2022 International Conference on Artificial Life and Robotics 62 - 66 2022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 comparative study on Michinoeki’s efficiency in Japan
T.Ito, S.Matsuno, M.Sakamoto, S.Ikeda, T.Ito
The 2022 International Conference on Artificial Life and Robotics (ICAROB2022) 53 - 57 2022年1月
掲載種別：研究論文（学術雑誌）
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Basic Study on Design Tool of Hula Costumes
Kamasaka T., Miyamoto K., Sakamoto M., Ikeda S., Takei A., Aoki K., Ito T., Ito T.
Proceedings of International Conference on Artificial Life and Robotics 383 - 391 2022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 International Conference on Artificial Life and Robotics
Miyazaki Prefecture has a large hula population, probably due to its similarity to Hawaii in mythology and climate. On the other hand, many hula costumes are handmade, and it costs tens of thousands of yen to produce an original design. So we are developing a 3D CAD (computer-aided design) system for hula costumes, based on the idea that we can reduce the number of failures by checking the behavior of the fabric when danced in the designed costume before production.
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Measuring the Entire Degree Centrality in Mazda’s Yokokai Keiretsu: A Parts-Importance Weighted Model
Ito Tsutomu, Matsuno Seigo, Sakamoto Makoto, Ikeda Satoshi, Ootani Mei, Ito Takao, Mehta Rajiv
Journal of Advances in Artificial Life Robotics 2 ( 4 ) 201 - 205 2022年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：株式会社 ALife Robotics
As a most important index in calculating network interrelationships, there are many definitions and more than 400 different centrality dimensions, such as degree, and betweenness, among many others, have been developed. All centrality indexes are calculated using the number of connection lines, and its position in a given network. In the automotive industry, interrelationships among partner firms are tied within a typical systemic network known as keiretsu. As it is widely known that different partners play different roles in assembly line, it is crucial to measure the centrality of transaction network in the keiretsu.. Thus, the relative importance of each partner in a connection line in a transaction network should be measured based upon the pivotal nature of each part, which has never been proposed. This paper contributes and advances our knowledge to the literature by proposing a new parts-importance weighted centrality model.
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Basic Study on the Use of XR Technology to Support Science Education
Miyamoto K., Kamasaka T., Sakamoto M., Yokomichi M., Ikeda S., Takei A., Ito T., Ito T.
Proceedings of International Conference on Artificial Life and Robotics 392 - 397 2022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 International Conference on Artificial Life and Robotics
According to the results of a survey on science teaching in 2016, the percentage of students who answered that they like science is lower than other subjects. However, more than 80% of students said that they like experiments and observations. In addition, a 2019 survey on smartphone penetration showed that about 90% of students are familiar with the technology. Also, XR technology has made remarkable progress in recent years. Based on the above, I conducted this research because I thought that creating a simulation application using XR technology with smartphones would change the way we think about science classes. In this paper, we have developed a simulation application for science experiments. The subjects were asked to experience the created application and answer a questionnaire. As a result, the average score was 4 out of 5, which was not a bad result. At the same time, however, we found a problem. The problem was that since this was a simulation application, the user experience was not very good. So we wanted to make it a little easier to use. While improving the problems, I would like to create applications for other fields as well.
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An Empirical Investigation on the Associate Among Tourists and Japanese Tourism Destinations 査読あり
Ito T., Matsuno S., Ito T., Sakamoto M., Ikeda S., Mehta R.
Journal of Robotics, Networking and Artificial Life 9 ( 4 ) 358 - 362 2022年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Robotics, Networking and Artificial Life
Currently, Japan is facing serious headwinds from declining birthrates as well as an aging society, and their economic consequences are widely known. Among many possible strategies to address the aging and shrinking population, the revitalizing the local economy in each prefecture become more prominent with an emphasis on spurring tourism. To shed light on this issue, this manuscript focuses on determining empirically the interrelationship between tourists and tourism destination characteristics using regression modelling. More specifically, the inter-linkages among tourists and tourism destinations are conducted by developing a 4-cell model. The results find support for the importance of the development of public traffic among different tourism destinations as a promising economic revitalization strategy.
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Regression analysis of COVID-19 regional data in Japan 査読あり
H. Furutani, S. Hiwa, T. Hiroyasu, S. Ikeda
Proceedings of the 26th international symposium on Artificial life and Robotics 152 - 155 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）
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Runtime analysis of linear functions using Markov chain method 査読あり
S.Ikeda, Y.Zhang, H.Furutani, S.Hiwa, T.Hiroyasu
The Twenty-Fifth International Symposium on Artificial Life and Robotics 2020 677 - 680 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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A Language Which is not Accepted by Any Space-Bounded N-Dimensional Alternating Turing Machines 査読あり
M.Sakamoto, T.Ishizu, K.Sakoma, S.Ikeda, A.Takei, K.Aoki, M.Yokomichi, T.Ito, T.Ito
International Workshop of ICAROB in Taiwan Intelligent Artificial Life and Robotics 33 - 37 2019年6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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Proposal for Interaction Techniques for Intuitive Virtual Objects Manipulation in Augmented Reality 査読あり
T.Ishizu,M.Sakamoto,T.Toyota,M.Hori,S.Ikeda,A.Takei,T.Ito,Y.Zhang
Proceedings of The 2019 International Conference on ARTIFICIAL LIFE AND ROBOTICS 237 - 240 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）
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A Study on Tourism Support Application Using the Virtual Technology 査読あり
M.Hori,M.Sakamoto,T.Ishizu,S.Ikeda,A.Takei,T.Ito,Y.Zhang
Proceedings of The 2019 International Conference on ARTIFICIAL LIFE AND ROBOTICS 233 - 136 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）
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k-Neighborhood Template A-Type Two-Dimensional Bounded Cellular Acceptors 査読あり
M.Sakamoto, Y.Zhang, M.Hori, H.Tsuboi, S.Ikeda, K.Aoki, T.Ito, T.Ito, Y.Uchida, T.Yoshinaga
Journal of Robotics, Networking and Artificial Life Volume 4 ( Issue 4 ) 270 - 274 2018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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k-Neighborhood Template A-Type Two-Dimensional Bounded Cellular Acceptors 査読あり
Makoto Sakamoto, Yu-an Zhang, Masamichi Hori, Haruka Tsuboi, Satoshi Ikeda, Kenji Aoki, Tsutomu Ito, Takao Ito, Yasuo Uchida, Tsunehiro Yoshinaga
Proceedings of the International Conference on Artificial Life and Robotics (ICAROB2018) 259 - 263 2018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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Four-Dimensional Homogeneous Systolic Pyramid Automata 査読あり
Makoto Nagatomo, Makoto Sakamoto, Chongyang Sun, Shinnosuke Yano, Satoshi Ikeda, Takao Ito, Tsutomu Ito, Yasuo Uchida, Tsunehiro Yoshinaga
Journal of Telecommunication, Electronic and Computer Engineering 9 ( 2-5 ) 75 - 77 2017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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Four-Dimensional Homogeneous Systolic Pyramid Automata 査読あり
M. Nagatomo, M. Sakamoto, S.Ikeda, T.Ito 他
Proceedings of the 2017 International Conference on Artificial Life and Robotics OS21 ( 2 ) 670 - 674 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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Consideration on the Recognizability of Three-Dimensional Patterns 査読あり
C.Sun,M.Sakamoto,M.Nagatomo,Y.Zhang,S.Yano,S.Ikeda,T.Ito,T.Ito,Y.Uchida,T.Yoshinaga
Proceedings of the 2017 International Conference on Artificial Life and Robotics OS21 ( 2 ) 666 - 669 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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Consideration on the Recognizability of Three-Dimensional Patterns
Chongyang Sun, Makoto Sakamoto, Makoto Nagatomo, Yu-an Zhang, Shinnosuke Yano, Satoshi Ikeda, Takao Ito, Tsutomu Ito, Yasuo Uchida, Tsunehiro Yoshinaga
Proceedings of the International Conference on Artificial Life and Robotics 666 - 669 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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Four-Dimensional Homogeneous Systolic Pyramid Automata 査読あり
Makoto Nagatomo, Makoto Sakamoto, Chongyang Sun, Shinnosuke Yano, Satoshi Ikeda, Takao Ito, Tsutomu Ito, Yasuo Uchida, Tsunehiro Yoshinaga
Proceedings of the International Conference on Artificial Life and Robotics 670 - 674 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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Four-dimensional homogeneous systolic pyramid automata
Nagatomo M., Sakamoto M., Sun C., Yano S., Ikeda S., Ito T., Ito T., Uchida Y., Yoshinaga T.
Journal of Telecommunication, Electronic and Computer Engineering 9 ( 2-5 ) 75 - 77 2017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：Journal of Telecommunication, Electronic and Computer Engineering
Cellular automaton is famous as a kind of the parallel automaton. Cellular automata were investigated not only in the viewpoint of formal language theory, but also in the viewpoint of pattern recognition. Cellular automata can be classified into some types. A systolic pyramid automata is also one parallel model of various cellular automata. A homogeneous systolic pyramid automaton with four-dimensional layers (4-HSPA) is a pyramid stack of four-dimensional arrays of cells in which the bottom four-dimensional layer (level 0) has size an (a=1), the next lowest 4(α-1), and so forth, the (α-1)st fourdimensional layer (level (α-1)) consisting of a single cell, called the root. Each cell means an identical finite-state machine. The input is accepted if and only if the root cell ever enters an accepting state. A 4-HSPA is said to be a real-time 4-HSPA if for every four-dimensional tape of size 4a (a=1), it accepts the fourdimensional tape in time α-1. Moreover, a 1-way fourdimensional cellular automaton (1-4CA) can be considered as a natural extension of the 1-way two-dimensional cellular automaton to four-dimension. The initial configuration is accepted if the last special cell reaches a final state. A 1-4CA is said to be a real-time 1-4CA if when started with fourdimensional array of cells in nonquiescent state, the special cell reaches a final state. In this paper, we proposed a homogeneous systolic automaton with four-dimensional layers (4-HSPA), and investigated some properties of real-time 4-HSPA. Specifically, we first investigated the relationship between the accepting powers of real-time 4-HSPA's and real-time 1-4CA's. We next showed the recognizability of four-dimensional connected tapes by real-time 4-HSPA's.
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Necessary spaces for seven-way four-dimensional Turing machines to simulate four-dimensional one-marker automata
M.Nagatomo, S.Yano, M.Sakamoto, S.Ikeda, H. Furutani, T.Ito, T.Ito, Y.Uchida, T.Yoshinaga
Proceedings of the 2016 International Conference on Artificial Life and Robotics, Okinawa Convention Center, Okinawa, Japan 345 - 348 2016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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Some properties of k-neighborhood template A-type two dimensional bounded cellular acceptors 査読あり
M.Sakamoto, M.Nagatomo, H.Susaki, T.Zhang, S.Ikeda, H.Furutani, T.Ito, Y.Uchida, T.Yoshinaga
Proceedings of the International Conference on Artificial Life and Robotics2015 344 - 347 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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Remarks on four-dimensional probabilistic finite automata
Sakamoto M., Uchida Y., Nagatomo M., Zhang T., Susaki H., Ito T., Yoshinaga T., Ikeda S., Yokomichi M., Furutani H.
International Journal of Software Engineering and its Applications 9 ( 6 ) 91 - 100 2015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：International Journal of Software Engineering and its Applications
© 2015 SERSC. This paper deals with the study of four-dimensional automata. Recently, due to the advances in many application areas such as dynamic image processing, computer animation, augmented reality (AR), and so on, it is useful for analyzing computation of four-dimensional information processing (three-dimensional pattern processing with time axis) to explicate the properties of four-dimensional automata. From this point of view, we have investigated many properties of four-dimensional automata and computational complexity. On the other hand, the class of sets accepted by probabilistic machines have been studied extensively. As far as we know, however, there is no results concerned with four-dimensional probabilistic machines. In this paper, we introduce four-dimensional probabilistic finite automata, and investigate some accepting powers of them.
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Ito T., Mehta R., Ito T., Sakamoto M., Ikeda S., Matsuno S., Takahashi K.
International Journal of Mathematical Models and Methods in Applied Sciences 9 463 - 472 2015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：International Journal of Mathematical Models and Methods in Applied Sciences
© 2015, North Atlantic University Union NAUN. All rights reserved. This paper discusses recent fundamental changes in the Japanese alliance networks known as keiretsu, and reports the findings of an empirical investigation on the relationship between these changes and corporate performance. More specially, the performance of Japanese auto manufacturers, such as Toyota, Mazda and Nissan, among others, has significantly improved due to sophisticated production system technologies, highly productive workers, and recurring transaction relationship with other partners in their network organization. One possible determinant of their success could be due to their unique organization forms – the keiretsu– which provides a strong platform to forge their strategic alliance ties with their parts suppliers as well as collaboration into research and development activities with other automobile manufacturers. After the Lehman Brothers bankruptcy in 2008, the strong ties between automobile makers and their supplier partners underwent significant modifications manifested by a “loosening of network ties due to “external influences”. Consequently, this begs the following questions: What is the status quo of automotive keiretsus? Are transactional relationships in keiretsu still associated with improved corporate performance? To answer these questions, this paper reports the results of a study that collected data on transaction to shed light on the relationship between inter-firm transactional relationship and corporate performance. The findings of this empirical investigation reveal that: (1) Keiretsu is a flexible, highly adaptive organizational form; its scale is prone to modifications in response to changes in economic conditions; (2) Transactional relationship is still a significant determinant of increasing profits for keiretsu partners even in the aftermath of the 2008 financial crisis.
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An evaluation model of internal and external contributions in hierarchical organizations
Ikeda S., Ito T., Sakamoto M., Ito T.
International Journal of Mathematical Models and Methods in Applied Sciences 9 636 - 645 2015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：International Journal of Mathematical Models and Methods in Applied Sciences
© 2015, North Atlantic University Union NAUN. All rights reserved. Two typical but different types of organization exist: one is traditional organization with a pyramid shaped hierarchical structure, while the other is a network organization with a nonhierarchical structure. In the organization sciences and its allied field including business administration, economics, public administration, sociology, and psychology, the behavioral patterns and values required in a specific organization have been discussed from the standpoint of being successful relative to other competing firms. From the examination of the literature, it is readily discernible that organizational studies on authority and layering have primarily been qualitative in nature. Organization theory suggests that to streamline the management of a large organization begins by dividing it into several sections. We propose a new mathematical model which defines internal and external contributions for the organizations in this paper. Consequently, the evaluation function in the new model is adapted by the sum of the contribution to the external of all members in a given organization. This paper offers two or more evaluation measures that are required for an organization to be specialized.
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Remarks on Four-Dimentuonal probabilistic finite automata 査読あり
M. Sakamoto, Y. Uchida, M. Nagatomo, T. Zhang, H.Susaki, T.Ito, T.Yoshinaga, S. Ikeda, M. Yokomichi, H. Furutani
Proceedings of the 7th International Conference on Signal Processing and Pattern Recognition 11 - 14 2014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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Remarks on Four-Dimensional Probabilistic Finite Automata
Sakamoto M., Uchida Y., Nagatomo M., Zhang T., Susaki H., Ito T., Yoshinaga T., Ikeda S., Yokomichi M., Furutani H.
Proceedings - 7th International Conference on Signal Processing, Image Processing and Pattern Recognition, SIP 2014 11 - 14 2014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：Proceedings - 7th International Conference on Signal Processing, Image Processing and Pattern Recognition, SIP 2014
© 2014 IEEE. This paper is a study of four-dimensional automata. Recently, due to the advances in many application areas such as dynamic image processing, computer animation, augmented reality (AR), and so on, it is useful for analyzing computation of four-dimensional information processing (three-dimensional pattern processing with time axis) to explicate the properties of four-dimensional automata. From this point of view, we have investigated many properties of four-dimensional automata and computational complexity. On the other hand, the class of sets accepted by probabilistic machines have been studied extensively. As far as we know, however, there is no results concerned with four-dimensional probabilistic machines. In this paper, we introduce four-dimensional probabilistic finite automata, and investigate some accepting powers of them.
DOI： 10.1109/SIP.2014.9
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Hierarchy Based on Neighborhood Template about k-Neighborhood Template A-Type Three-Dimensional Bounded Cellular Acceptor
M.Sakamoto, M.Nagatomo, X.Feng, T.Kurogi, T.Zhang, T.Ito, Y.Uchida,T.Yoshinaga,S.Ikeda, M.Yokomichi, H.Furutani
Proceedings of the International Conference on Artificial Life and Robotics 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 Comparative Study of Transactional Network between Kyohokai and Yokokai 査読あり
M. Sakamoto, M. Hasama, T. Ito, Y. Uchida, R. Mehta, Y. Park, S. Ikeda
Proceedings of the International Conference on Artificial Life and Robotics 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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An Empirical Examination of Inter-firm Capital Relationships in Mazda’s Yokokai using the IDE Spatial Model 査読あり
M. Sakamoto, S. Tagawa, T. Ito, S. Matsuno, R. Mehta, V. Berdonosov, S. Ikeda
Proceedings of the International Conference on Artificial Life and Robotics 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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An Analysis of Network Structure in Mazda’s Yokokai using the DEC Spatial Model 査読あり
T.Ito, S.Tagawa,S.Matsuno, Y.Uchida, M.Sakamoto, S.Ikeda, R.Mehta
Proceedings of the 2013 International Conference on Business Administration, Marketing , and Economics 77 - 81 2013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 Research on Inter-Firms Relationship using Network-Based DEA -A Case Study of Mazda Yokokai- 査読あり
T. Ito, S. Matsuno, R. Mehta, M. Sakamoto, S. Ikeda
Proceedings of the 2nd International Conference on Integrated Systems and Management for Energy, Development, Environment, and Health 92 - 97 2013年4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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Measuring efficiency of firms in Yokokai using the IDCBI Spatial Model 査読あり
T.Ito, M.Hasama, R.Mehta, M.SAKAMOTO,S.Ikeda
Proceedings of the 2nd International Conference on Integrated Systems and Management for Energy, Development, Environment, and Health 116 - 122 2013年4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 Analysis of Inter-firms Distances and Corporate Performance Using DEC Spatial Model 査読あり
T.Ito, S. Matuno, R. Mehta, M. Sakamoto, S. Ikeda
Proceedings of the 2nd International Conference on Integrated Systems and Management for Energy, Development, Environment, and Health 80 - 85 2013年4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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Homogeneous Systolic Pyramid Automata with n-Dimensional Layers 査読あり
2.Makoto Sakamoto, Takao Ito, Tatsuma Kurogi, Makoto Nagatomo, Yasuo Uchida, Tsunehiro Yoshinaga, Satoshi Ikeda, Masahiro Yokomichi, and Hiroshi Furutani
The Eighteenth International Symposium on Artificial Life and Robotics 2013 300 - 302 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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Remarks on Recognizability of Four-Dimentuonal Topological Components 査読あり
3.Makoto Sakamoto, Makoto Nagatomo, Tatsuma Kurogi, Takao Ito, Yasuo Uchida, Tsunehiro Yoshinaga, Satoshi Ikeda, Masahiro Yokomichi, and Hiroshi Furutani
The Eighteenth International Symposium on Artificial Life and Robotics 2013 45 - 48 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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Bottom-Up Pyramid Cellular Acceptors with n-dimensional Layers 査読あり
1.Makoto Sakamoto, Tatsuma Kurogi, Makoto Nagatomo, Takao Ito, Yasuo Uchida, Tsunehiro Yoshinaga, Satoshi Ikeda, Masahiro Yokomichi, and Hiroshi Furutani
The Eighteenth International Symposium on Artificial Life and Robotics 2013 296 - 299 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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Hierarchies Based on the Number of Cooperating Systems of Finite Automata on Four-Dimensional Input Tapes 査読あり
Makoto Sakamoto, Yasuo Uchida, Makoto Nagatomo, Takao Ito,Tsunehiro Yoshinaga,Satoshi Ikeda, Masahiro Yokomichi, and Hiroshi Furutani
International Conference on Computer and Information Engineering, WASET 2012 72 123 - 129 2012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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Hierarchies Based on the Number of Cooperating Systems of Finite Automata on Four-Dimensional Input Tapes 査読あり
Makoto Sakamoto, Yasuo Uchida, Makoto Nagatomo, Takao Ito,Tsunehiro Yoshinaga,Satoshi Ikeda, Masahiro Yokomichi, Hiroshi Furutani
WORLD ACADEMY OF SCIENCE, ENGINEERING AND TECHNOLOGY 72 1068 - 1073 2012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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SAKAMOTO Makoto, UCHIDA Yasuo, HAMADA Takashi, ITO Takao, YOSHINAGA Tsunehiro, YOKOMICHI Masahiro, IKEDA Satoshi, FURUTANI Hiroshi
電子情報通信学会総合大会講演論文集 2012 ( 1 ) 2012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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Bottom-Up Pyramid Cellular Acceptors with Four-Dimensional Layers 査読あり
Y.Uchida, T.Ito, M.Sakamoto, T.Ide, K.Uchida, R.Katamune, H.Furutani, M.Kono, S.Ikeda, T.Yoshinaga
International Journal of Artificial Life and Robotics, Springer 16 ( 4 ) 529 - 532 2012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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Bottom-up pyramid cellular acceptors with four-dimensional layers
Uchida Y., Ito T., Sakamoto M., Ide T., Uchida K., Katamune R., Furutani H., Kono M., Ikeda S., Yoshinaga T.
Artificial Life and Robotics 16 ( 4 ) 529 - 532 2012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：Artificial Life and Robotics
In 1967, M. Blum and C. Hewitt first proposed two-dimensional automata as a computational model of two-dimensional pattern processing. Since then, many researchers in this field have been investigating the many properties of two- or three-dimensional automata. In 1977, C. R. Dyer and A. Rosenfeld introduced an acceptor on a two-dimensional pattern (or tape) called the pyramid cellular acceptor, and demonstrated that many useful recognition tasks are executed by pyramid cellular acceptors in a time which is proportional to the logarithm of the diameter of the input. They also introduced a bottom-up pyramid cellular acceptor, which is a restricted version of the pyramid cellular acceptor, and proposed some interesting open problems about bottom-up pyramid cellular acceptors. On the other hand, we think that the study of four-dimensional automata has been meaningful as the computational model of four-dimensional information processing such as computer animation, moving picture processing, and so forth. In this article, we investigate bottom-up pyramid cellular acceptors with four-dimensional layers, and show some of their accepting powers. © 2012 International Symposium on Artificial Life and Robotics (ISAROB).
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A note on three-dimensional probabilistic finite automata 査読あり
M. Sakamoto, M. Yokomichi, S. Ikeda, H. Furutani, T. Ito, Y. Uchida, X. Qingquan,T. Yoshinaga
Proceedings of the seventeenth international symposium on artificial life and robotics 492 - 495 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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Bottom-up pyramid cellular acceptors with four-dimensional layers
Uchida Y., Ito T., Sakamoto M., Ide T., Uchida K., Katamune R., Furutani H., Kono M., Ikeda S., Yoshinaga T.
Proceedings of the 16th International Symposium on Artificial Life and Robotics, AROB 16th'11 187 - 190 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
In 1967, M.Blum and C.Hewitt first proposed two-dimentional automata as a computaional model of two-dimentional pattern processing. Since then, many researchers in this field have been investigating many properties of two-or three-dimentional automata. In 1997, C.R.Dyer and A.Rosenfeld introduced an acceptor on a two-dimensional pattern (or tape), called the pyramid cellular acceptor, and demonstrated that many useful recognition tasks are executed by pyramid cellular acceptors in time proportional to the logarithm of the diameter of the input. They also introduced a bottom-up pyramid cellular acceptor which is a restricted version of the pyramid cellular acceptor, and proposed some interesting open problems about bottom-up pyramid cellular acceptors. On the other hand, we think that the study of fourdimensional automata has been meaningful as the computational model of four-dimensional infomation processing such as computer animation, moving picture processing, and so forth[9]. In this paper,we investigate about bottom-up pyramid cellular accptors with four-dimensional layers, and show their some accepting powers. © 2011 ISAROB.
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Bottom-up pyramid cellular acceptors with four-dimensional layers 査読あり
Y. Uchida, T. Ito, M. Sakamoto, T. Ide, K. Uchida, R. Katamune, H. Furutani, M. Kono, S. Ikeda, T. Yoshinaga
The Sixteenth International Symposium on Artificial Life and Robotics 2011 187 - 190 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 Relationship between Marker and Inkdot for Four-Dimensional Automata
Y. Uchida, T. Ito, M. Sakamoto, R. Katamune, K. Uchida, H. Furutani, M. Kono, S. Ikeda, T. Yoshinaga
International Journal of computers 5 ( 1 ) 66 - 73 2011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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Path-Bounded Finite Automata on Four-Dimensional Input Tapes 査読あり
Y. Uchida, T. Ito, M. Sakamoto, R. Katamune, K. Uchida, H. Furutani, M. Kono, S. Ikeda, T. Yoshinaga
International Journal of computers 5 ( 1 ) 58 - 65 2011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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Discovering the efficient organization structure: Horizontal versus vertical
Ikeda S., Ito T., Sakamoto M.
Proceedings of the 15th International Symposium on Artificial Life and Robotics, AROB 15th'10 188 - 191 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
Structure analysis is one of the most important issues in corporate management. Pyramid structure, as one of the well-known vertical structure, plays an important part in the corporate organization. Most structures of the traditional organizations such as functional structure and divisional structure are vertical. Recently, due to the development of Information Technology, a new horizontal structure, instead of the vertical one, has been drawn considerable attention. In this paper, we reviewed the efficient organization structure, and found that there are two efficient structures: vertical structure and horizontal structure, depending on the different abilities of each member in any organizations with the comprehensive evaluation measurement. The line structure of vertical organization is efficient when the ability of all members is small. While the ability of all members is large, the star structure of horizontal organization will be efficient. Therefore, this paper provides a theoretical perspective to prove the efficient organization structures and their required conditions. © 2010 ISAROB.
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Path-bounded four-dimensional finite automata
Uchida Y., Ito T., Sakamoto M., Katamune R., Uchida K., Furutani H., Kono M., Ikeda S., Yoshinaga T.
International conference on System Science and Simulation in Engineering - Proceedings 332 - 335 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：International conference on System Science and Simulation in Engineering - Proceedings
The comparative study of the computational powers of deterministic and nondeterministic computations is one of the central tasks of complexity theory. This paper investigates the computational power of nondetermin-istic computing devices with restricted nondeterminism. There are only few results measuring the computational power of restricted nondeterminism. In general, there are three possibilities to measure the amount of nondeter-minism in computation. In this paper, we consider the possibility to count the number of different nondeterministic computation paths on any input. In particular, we deal with seven-way four-dimensional finite automata with multiple input heads operating on four-dimensional input tapes.
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Marker versus inkdot on four-dimensional tapes
Uchida Y., Ito T., Sakamoto M., Katamune R., Uchida K., Furutani H., Kono M., Ikeda S., Yoshinaga T.
International conference on System Science and Simulation in Engineering - Proceedings 327 - 331 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：International conference on System Science and Simulation in Engineering - Proceedings
A multi-marker automaton is a finite automaton which keeps marks as pebbles in the finite control, and cannot rewrite any input symbols but can make marks on its input with the restriction that only a bounded number of these marks can exist at any given time. An improvement of picture recognizability of the finite automaton is the reason why the multi-marker automaton was introduced. On the other hand, a multi-inkdot automaton is a conventional automaton capable of dropping an inkdot on a given input tape for a landmark, but unable to further pick it up. Due to the advances in many application areas such as moving image processing, computer animation, and so on, it has become increasingly apparent that the study of four-dimensional pattern processing has been of crucial importance. Thus, we think that the study of four-dimensional automata as a computational model of four-dimensional pattern processing has also been meaningful. This paper deals with marker versus inkdot over four-dimensional input tapes, and investigates some properties.
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Marker versus Inkdot on Four-Dimensional Tapes 査読あり
Y. Uchida, T. Ito, M. Sakamoto, R. Katamune, K. Uchida, H. Furutani, M. Kono, S. Ikeda, T. Yoshinaga
Selected Topics in System Science and Simulation in Engineering(9th WSEAS International Conference on System Science and Simulation in Engineering) 327 - 331 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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Path-Bounded Four-Dimensional Finite Automata
Y. Uchida, T. Ito, M. Sakamoto, R. Katamune, K. Uchida, H. Furutani, M. Kono, S. Ikeda, T. Yoshinaga
Selected Topics in System Science and Simulation in Engineering(9th WSEAS International Conference on System Science and Simulation in Engineering) 332 - 335 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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Synchronized Alternating Turing Machines on Four-Dimensional Input Tapes 査読あり
Makoto Sakamoto, Tomoya Matsukawa, Ryoju Katamune,Hiroshi Furutani, Michio Kono, Satoshi Ikeda,Takao Ito, Yasuo Uchida, Tsunehiro Yoshinaga
WSEAS TRANSACTIONS on COMPUTERS 9 ( 4 ) 319 - 328 2010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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Sakamoto M., Katamune R., Matsukawa T., Furutani H., Kono M., Ikeda S., Ito T., Uchida Y., Yoshinaga T.
WSEAS Transactions on Computers 9 ( 4 ) 329 - 338 2010年4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：WSEAS Transactions on Computers
The recent advances in computer animation, motion image processing, robotics and so on prompted us to analyze computational complexity of four-dimensional pattern processing. Thus, the research of four-dimensional automata as a computational model of four-dimensional pattern processing has also been meaningful. From this viewpoint, we introduced a four-dimensional alternating Turing machine (4-ATM) operating in parallel. In this paper, we continue the investigations about 4-ATM's, deal with a four-dimensional synchronized alternating Turing machine (4-SATM), and investigate some properties of 4-SATM's which each sidelength of each input tape is equivalent. The main topics of this paper are: (1) hierarchies based on the number of processes of 4-SATM's, and (2) recognizability of connected pictures by 4-SATM's.
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Synchronized alternating turing machines on four-dimensional input tapes
Sakamoto M., Matsukawa T., Katamune R., Furutani H., Kono M., Ikeda S., Ito T., Uchida Y., Yoshinaga T.
WSEAS Transactions on Computers 9 ( 4 ) 319 - 328 2010年4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：WSEAS Transactions on Computers
Synchronized alternating machine is an alternating machine with a special subset of internal states called synchronizing states. This paper introduces a four-dimensional synchronized alternating Turing machine (4-SATM), and investigates fundamental properties of 4-SATM's. The main topics of this paper are: (1) a relationship between the accepting powers of 4-SATM's and four-dimensional alternating Turing machines with small space bounds, (2) a relationship between the accepting powers of seven-way and eight-way 4-SATM's, (3) a relationship between the accepting powers of 4-SATM's and four-dimensional nondeterministic Turing machines. In this paper, we let each sidelength of each input tape of these automata be equivalent in order to increase the theoretical interest.
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Some Results about Hierarchy and Recognizability of Four-Dimensional Synchronized Alternating Turing Machines 査読あり
M. Sakamoto, R. Katamune,T. Matsukawa, H. Furutani, M. Kono, S. Ikeda, T. Ito, Y. Uchida, T. Yoshinaga
Proceedings of the American Conference on Applied Mathematics 201 - 205 2010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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Four-Dimensional Synchronized Alternating Turing Machines 査読あり
M. Sakamoto, R. Katamune,T. Matsukawa, H. Furutani, M. Kono, S. Ikeda, T. Ito, Y. Uchida, T. Yoshinaga
Proceedings of the American Conference on Applied Mathematics 195 - 200 2010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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Bottom-up pyramid cellular acceptors with three-dimensional layers
Sakamoto M., Kajisa K., Tomozoe N., Ito T., Furutani H., Kono M., Ikeda S.
Artificial Life and Robotics 13 ( 1 ) 61 - 64 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
In 1997, C.R. Dyer and A. Rosenfeld introduced an acceptor on a two-dimensional pattern (or tape), called the pyramid cellular acceptor, and demonstrated that many useful recognition tasks are executed by pyramid cellular acceptors in time proportional to the logarithm of the diameter of the input. They also introduced a bottom-up pyramid cellular acceptor which is a restricted version of the pyramid cellular acceptor, and proposed some interesting open problems of the bottom-up pyramid cellular acceptors. On the other hand, we think that the study of threedimensional automata has been meaningful as the computational model of three-dimensional information processing such as computer vision, robotics, and so forth. In this paper, we investigate about bottom-up pyramid cellular acceptors with three-dimensional layers, and show their some accepting powers. © International Symposium on Artificial Life and Robotics (ISAROB). 2008.
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Three-dimensional parallel Turing machines
Ito T., Sakamoto M., Furutani H., Kono M., Ikeda S.
Artificial Life and Robotics 13 ( 1 ) 364 - 367 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
Informally, the parallel Turing machine (PTM) proposed by Wiedermann is a set of identical usual sequential Turing machines (STMs) cooperating on two common tapes: storage tape and input tape. Moreover, STMs which represent the individual processors of a parallel computer can multiply themselves in the course of computation. On the other hand, during the past 25 years or so, automata on a three-dimensional tape have been proposed as computational models of three-dimensional pattern processing, and several properties of such automata have been obtained. We proposed a three-dimensional parallel Turing machine (3-PTM), and dealt with a hardware-bounded 3-PTM whose inputs are restricted to cubic ones. We believe that this machine is useful in measuring the parallel computational complexity of three-dimensional images. In this article, we continue the study of 3-PTM, whose inputs are restricted to cubic ones, and investigate some of its accepting powers. © International Symposium on Artificial Life and Robotics (ISAROB). 2008.
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Remarks on the recognizability of topological components by three-dimensional automata
Sakamoto M., Ito T., Furutani H., Kono M., Ikeda S.
Artificial Life and Robotics 13 ( 1 ) 368 - 372 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
It is conjectured that the three-dimensional pattern processing has its own difficulties not arising in two-dimensional case. One of these difficulties occurs in recognizing topological properties of three-dimensional patterns because the three-dimensional neighborhood is more complicated than two-dimensional case. Generally a property or relationship is topological only if it is preserved when an arbitrary "rubber-sheet" distortion is applied to the pictures. For example, adjacency and connectedness are topological; area, elongatedness, convexity, and straightness are not. In recent years, there have been many interesting papers on digital topological properties. For example, an interlocking component was defined as a new topological property in three-dimensional digital pictures, and it was proved that no one marker automaton can recognize interlocking components in a three-dimensional digital picture. In this paper, we deal with recognizability of topological components by three-dimensional Turing machines, and investigate some properties. © International Symposium on Artificial Life and Robotics (ISAROB). 2008.
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Marker versus inkdot over three-dimensional patterns
Ito T., Sakamoto M., Okabe H., Furutani H., Kono M., Ikeda S.
Artificial Life and Robotics 13 ( 1 ) 65 - 68 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
A multi-marker automaton is a finite automaton which keeps marks as pebbles in the finite control, and cannot rewrite any input symbols but can make marks on its input with the restriction that only a bounded number of these marks can exist at any given time. An improvement of picture recognizability of the finite automaton is the reason why the multi-marker automaton was introduced. On the other hand, a multi-inkdot automaton is a conventional automaton capable of dropping an inkdot on a given input tape for a landmark, but unable to further pick it up. This paper deals with marker versus inkdot over threedimensional input tapes, and investigates some properties. © International Symposium on Artificial Life and Robotics (ISAROB). 2008.
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Marker versus inkdot over three-dimensional patterns
Ito T., Sakamoto M., Okabe H., Furutani H., Kono M., Ikeda S.
Proceedings of the 13th International Symposium on Artificial Life and Robotics, AROB 13th'08 843 - 846 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
A multi-marker automaton is a finite automaton which keeps marks as pebbles in the finite control, and cannot rewrite any input symbols but can make marks on its input with the restriction that only a bounded number of these marks can exist at any given time. An improvement of picture recognizability of the finite automaton is the reason why the multi-marker automaton was introduced. On the other hand, a multi-inkdot automaton is a conventional automaton capable of dropping an inkdot on a given input tape for a landmark, but unable to further pick it up. This paper deals with marker versus inkdot over three-dimensional input tapes, and investigates some properties. ©ISAROB 2008.
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Three-Dimensional Parallel Turing Machines 査読あり
T.Ito, M.Sakamoto,H.Furutani, M.Kono, S.Ikeda,
Artificial Life and Robotics 13 ( 1 ) 364 - 367 2008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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Remarks on Recognizability of Topological Components by Tree-Dimensional Automata 査読あり
M.Sakamoto, T.Ito ,H.Furutani, M.Kono, S.Ikeda,
Artificial Life and Robotics 13 ( 1 ) 368 - 372 2008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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Maker versus inkdot over three dimensional patterns 査読あり
T.Ito, M.Sakamoto, H.Okabe, H.Furutani, M.Kono, S.Ikeda
Artificial Life and Robotics 13 ( 1 ) 65 - 68 2008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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Bottom-up pyramid cellular acceptors with three dimensional layer 査読あり
M.Sakamoto, K.kajisa, N.Tomozoe, T.Ito, H.Furutani, M.Kono, S.Ikeda
Artificial Life and Robotics 13 ( 1 ) 61 - 64 2008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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Marker versus Inkdot over Three-Dimensional Patterns 査読あり
Takao Ito, Makoto Sakamoto, Hidenobu Okabe, Hiroshi Furutani, Michio Kono, Satoshi Ikeda
proceedings of the 13th International Syposium on Artifical Life and Robotics2008 843 - 846 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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Bottom-Up Pyramid Cellular Acceptors with Three-Dimensional Layers 査読あり
M. Sakamoto,K. Kajisa,N. Tomozoe,T. Ito,H. Furutani,M. Kono,S. Ikeda
Proceedings of the 13th International Symposium on Artificial Life and Robotics2008 839 - 842 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 Relationship between the accepting powers of alternating finite automata and nondeterministic on-line tessellation acceptors on four-dimensional input tapes 査読あり
N. Tomozoe, M. Sakamoto, K. Iihoshi, Y. Nagamizu, T. Ito, H. Furutani, M. Kono, S. Ikeda
Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07 144 - 147 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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Leaf-size hierarchy of four-dimensional alternating Turing machines
Iihoshi K., Sakamoto M., Ito T., Tomozoe N., Nagamizu Y., Furutani H., Kono M., Ikeda S., Tamaki T., Inoue K.
Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07 140 - 143 2007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：Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07
The recent adurances in computer animation, motion image processing and so on prompted us to analyze computational complexity of multi-dimensional information processing to explicate the properties of four-dimensional automata, i.e., three-dimensional automata with the time axis. From this point of view, we first introduced four-dimensional alternating Turing machines 4-ATM's, and investigated leaf-size bounded computation for 4-ATM's in [4,6]. In this paper, we continue the investigations about 4-ATM's, and maily investigate leaf-size bounded computation of 4-ATM's. Basically, the 'leaf-size' is the minimum number of leaves of some accepting computation trees of alternating Turing machines. Leaf-size, in a sense, reflects the minimum number of processors that run in parallel in accepting a given input. ©ISAROB 2007.
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Three-dimensional parallel Turing machines
Ito T., Sakamoto M., Nagamizu Y., Iihoshi K., Tomozoe N., Furutani H., Kono M., Ikeda S., Tamaki T., Inoue K.
Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07 131 - 134 2007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：Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07
Informally, a parallel Turing machine (PTM) proposed by Wiedermann is a set of identical usual sequential Turing machines (STM's) cooperating on two common tapes - storage tape and input tape. Moreover, STM's which represent the individual processors of the parallel computer can multiply themselves in the course of computation. On the other hand, during the past about twenty-five years, automata on a three-dimensional tape have been proposed as computational models of three-dimensional pattern processing and several properties of such automata have been obtained. In this paper, we propose a three-dimensional parallel Turing machine (3-PTM), and investigate its some properties. Especially, we deal with a hardware-bounded 3-PTM, whose inputs are restricted to cubic ones. We believe that this machine is useful in measuring the parallel computational complexity of three-dimensional images. ©ISAROB 2007.
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Remarks on recognizability of topological components by three-dimensional automata
Nagamizu Y., Sakamoto M., Ito T., Iihoshi K., Tomozoe N., Furutani H., Kono M., Ikeda S., Tamaki T., Inoue K.
Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07 135 - 139 2007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：Proceedings of the 12th International Symposium on Artificial Life and Robotis, AROB 12th'07
It is conjectured that the three-dimensional pattern processing has its our difficulties not arising in two-dimensional case. One of these difficulties occurs in recognizing topological properties of three-dimensional patterns because the three-dimensional neighborhood is more complicated than two-dimensional case. Generally speaking, a property or relationship is topological only if it is preserved when an arbitrary ' rubber-sheet ' distortion is applied to the pictures . For example, adjacency and connectedness are topological ; area, elongatedness, convexity, straightness, etc. are not. In recent years, there have been many interesting papers on digital topological properties. For example, an interlocking component was defined as a new topological property in three-dimensional digital pictures, and it was proved that no one marker automaton can recognize interlocking components in a three-dimensional digital picture. In this paper, we deal with recognizability of topological components by three-dimensional Turing machines, and investigate some properties. ©ISAROB 2007.
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複雑ネットワークとしてのConnections Modelについて
守田 大輔, 多田 惇哉, 池田 諭
宮崎大学工学部紀要 ( 36 ) 245 - 249 2007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：宮崎大学工学部
Connections model is an economic network model introduced by Jackson and Wolinsky. This model is a typical example of complex networks. They showed that an efficient network did not always accord with a stable network under some limited conditions. Our purpose of this paper is to show that an efficient network do not always accord with a stable network under partially generalized conditions.
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守田 大輔, 多田 惇哉, 池田 諭
電気関係学会九州支部連合大会講演論文集 2007 ( 0 ) 94 - 94 2007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：電気・情報関係学会九州支部連合大会委員会
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Ikeda S., Kubo I., Yamashita M.
Proceedings of the International Conference on VLSI 203 - 207 2003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 International Conference on VLSI
For any undirected connected graph G = (V, E) with order n, let P (β) = (p uv (β) ) u,v∈V be a transition matrix defined by p uv (β) = exp[-βU(u,v)]/∑ w∈N(u) exp[-βU(u,w)] for u ∈ V, v ∈ N(u), where β is a real number, N(u) is the set of vertices adjacent to a vertex u, deg(u) = |N(u)|, and U(·, ·) is a potential function defined as U(u, v) = U(v) = log deg(v) for v ∈ N(u), u ∈ V. In this paper, we show that for any undirected graph with order n, the cover time and the mean hitting time for P (1/2) are bounded by O(n 2 log n) and O(n 2 ), respectively. Since the mean hitting time of a path graph of order n, for any transition matrix, is ω(n 2 ), P (1/2) is best possible with respect to the mean hitting time.
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Impact of local topological information on random walks on finite graphs
Ikeda S., Kubo I., Okumoto N., Yamashita M.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2719 1054 - 1067 2003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)
It is just amazing that both of the mean hitting time and the cover time of a random walk on a finite graph, in which the vertex visited next is selected from the adjacent vertices at random with the same probability, are bounded by O(n3) for any undirected graph with order n, despite of the lack of global topological information. Thus a natural guess is that a better transition matrix is designable if more topological information is available. For any undirected connected graph G = (V, E), let P(β)= (puv(β))u,v∈Vbe a transition matrix defined by (Equation Presented) where β is a real number, N(u) is the set of vertices adjacent to a vertex u, deg(u) = |N(u)|, and U(·, ·) is a potential function defined as U(u, v) - log (max {deg(u), deg(v)}) for it u ∈ V, v ∈ N(u). In this paper, we show that for any undirected graph with order n, the cover time and the mean hitting time with respect to P(1)are bounded by O(n2log n) and O(n2), respectively. We further show that P(1)is best possible with respect to the mean hitting time, in the sense that the mean hitting time of a path graph of order n, with respect to any transition matrix, is Ω(n2). © Springer-Verlag Berlin Heidelberg 2003.
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Ikeda S., Kubo I., Okumoto N., Yamashita M.
IEEE Transactions on Parallel and Distributed Systems 13 ( 4 ) 367 - 372 2002年4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 Parallel and Distributed Systems
Suppose that a distributed system is modeled by an undirected graph G = (V, E), where V and E, respectively, are the sets of processes and communication links. Israeli and Jalfon [6] proposed a simple self-stabilizing mutual exclusion algorithm: A token is circulated among the processes (i.e., vertices) and a process can access the critical section only when it holds the token. In order to guarantee equal access change to all processes, the token circulation is desired to be fair in the sense that all processes have the same probability of holding the token. However, the Israeli-Jalfon token circulation scheme does not meet the requirement. This paper proposes a new scheme for making it fair. We evaluate the average of the longest waiting times in terms of the cover time and show an O(deg(G)n2) upper bound on the cover time for our scheme, where n and deg(G) are the number of processes and the maximum degree of G, respectively. The same (tight) upper bound is known for the Israeli-Jalfon scheme.
DOI： 10.1109/71.995817
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Ikeda S.
Hiroshima Mathematical Journal 25 ( 3 ) 527 - 540 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：Hiroshima Mathematical Journal
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On a fractal set with a gap between its Hausdorff dimension and box dimension
Ikeda S.
Hiroshima Mathematical Journal 25 ( 2 ) 433 - 439 1995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：Hiroshima Mathematical Journal
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On the Billingsley dimension on R<sup>N</sup>
Ikeda S.
Hiroshima Mathematical Journal 25 ( 1 ) 123 - 142 1995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：Hiroshima Mathematical Journal