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Affiliation |
Engineering educational research section Information and Communication Technology Program |
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Title |
Associate Professor |
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External Link |
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Related SDGs |
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YAMABA Hisaaki
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Degree 【 display / non-display 】
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Doctor (Engineering) ( 2011.3 University of Miyazaki )
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Master(Engineering) ( 1990.3 Tokyo Institute of Technology )
Research Areas 【 display / non-display 】
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Chemical reaction and process system engineering
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Informatics / Information security
Papers 【 display / non-display 】
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An Image Privacy Risk Detection that Maintains the Detection Performance under Interference from Reflective Components in the Image Reviewed
67 ( 3 ) 588 - 604 2026.3
Language：Japanese Publishing type：Research paper (scientific journal)
DOI： 10.20729/0002008648
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MIXVRT: MIX Visual Regression Testing Tool Which Mixes Image Comparison and HTML Code Comparison Reviewed
Aridome Naoki, Takahashi Nobuya, Katayama Tetsuro, Kita Yoshihiro, Yamaba Hisaaki, Aburada Kentaro, Okazaki Naonobu
Journal of Robotics, Networking and Artificial Life 11 ( 3 ) 214 - 219 2026.3
Language：English Publishing type：Research paper (scientific journal) Publisher：The Society of Artificial Life and Robotics
Image-based visual regression testing has the problem that it takes time required to find layout defects. Therefore, this paper develops MIXVRT (MIX Visual Regression Testing tool), which mixes image comparison and HTML code comparison. It highlights the layout defects. From evaluation experiments, we have confirmed that the time required to find layout defects can be reduced compared to the conventional methods of image-based visual regression testing, while detecting them accurately without omissions or false detections.
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Kimura Yuya, Takahashi Nobuya, Katayama Tetsuro, Kita Yoshihiro, Yamaba Hisaaki, Aburada Kentaro, Okazaki Naonobu
Journal of Robotics, Networking and Artificial Life 11 ( 3 ) 220 - 225 2026.3
Language：English Publishing type：Research paper (scientific journal) Publisher：The Society of Artificial Life and Robotics
An effective approach to manage the content entered in forms is the use of electronic forms. However, if you use a paper form, it takes time to generate electronic forms. This paper has implemented a tool for automatic entry fields detection and for labels allocation to reduce the time required to place entry fields. As a result, we have verified that the implemented tool is useful to reduce the time to place entry fields.
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Malware Classification Using Transformer-Based Modeling of API Call Sequences Reviewed
Ryoga Sakai, Shotaro Usuzaki, Kentaro Aburada, Hisaaki Yamaba, Nobuya Takahashi, Mirang Park, Naonobu Okazaki
Proc. 2026 Int'l Symp. on Artificial Life and Robotics (ISAROB 2026) 1254 - 1259 2026.1
Publishing type：Research paper (international conference proceedings)
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Investigation of an Authentication Method Using Vibration-Based Secret Cues and a Virtual Dial Interface Reviewed
Takumi Kido, Shotaro Usuzaki, Kentaro Aburada, Hisaaki Yamaba, Nobuya Takahashi, Mirang Park, Naonobu Okazaki
Proc. 2026 Int'l Symp. on Artificial Life and Robotics (ISAROB 2026) 1248 - 1253 2026.1
Publishing type：Research paper (international conference proceedings)
Books 【 display / non-display 】
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Identification of Manual Alphabets Based Gestures Using s-EMG for Realizing User Authentication
Yamaba H., Usuzaki S., Takatsuka K., Aburada K., Katayama T., Park M., Okazaki N.（ Role： Sole author）
Lecture Notes on Data Engineering and Communications Technologies 2020
Language：Japanese Book type：Scholarly book
At the present time, since mobile devices such as tablet-type PCs and smart phones have penetrated deeply into our daily lives, an authentication method that prevents shoulder surfing attacks comes to be important. We are investigating a new user authentication method for mobile devices that uses surface electromyogram (s-EMG) signals, not screen touching. The s-EMG signals, which are generated by the electrical activity of muscle fibers during contraction, can be detected over the skin surface, and muscle movement can be differentiated by analyzing the s-EMG signals. Taking advantage of the characteristics, we proposed a method that uses a list of gestures as a password in the previous study. In order to realize this method, we have to prepare a sufficient number of gestures that are used to compose passwords. In this paper, we adopted fingerspelling as candidates of such gestures. We introduced manual kana of the Japanese Sign Language syllabary and compared the identification performance of some candidate sets of feature values with adopting support vector machines.
MISC 【 display / non-display 】
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Usuzaki S., Aburada K., Yamaba H., Katayama T., Mukunoki M., Park M., Okazaki N.
Artificial Life and Robotics 27 ( 1 ) 2022.2
Language：Japanese Publishing type：Rapid communication, short report, research note, etc. (scientific journal) Publisher：Artificial Life and Robotics
In the original publication of the article, on Figs. 4 and 5, “CNN” should read as “MLP”. In addition, under the section “4.2 Human and machine success rate”, on the paragraph “For evaluation of the machine success …”, in the following sentence “In the attack experiment, we applied the famous color …” CNN (Convolutional Neural Network) should be corrected as MLP (Multilayer perceptron). The correct sentence should read as “In the attack experiment, we applied the famous color constancy algorithm, Gray-World, Max-RGB, Gray-Edge [11], Second Derivative Gray-Edge, and MLP (Multilayer perceptron) to images that were saved in the experiment for the human success rate
Presentations 【 display / non-display 】
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視覚の補完機能を利用した文字型CAPTCHAの提案
臼崎 翔太郎，鎌田 大貴，油田 健太郎，山場 久昭，片山 徹郎，朴 美娘，岡崎 直宣
情報処理学会CDS研究会第43回研究発表会 (宮崎市高千穂ホール) 情報処理学会ITS研究会
Event date： 2025.5.29 - 2025.5.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：宮崎市高千穂ホール
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1B10 Do not let the remote class experiences become a liability
YAMABA Hisaaki
Proceedings of Annual Conference of Japanese Society for Engineering Education 2023.9.6 Japanese Society for Engineering Education
Event date： 2023.9.6 - 2023.9.8
Language：Japanese Presentation type：Oral presentation (general)
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色の恒常性を利用したCAPTCHAの機械攻撃 耐性の評価と分析
永井 麻裕, 臼崎 翔太郎, 油田 健太郎, 山場 久昭, 椋木 雅之, 岡崎 直宣
火の国情報シンポジウム2022 (宮崎大学) 2022.3.1 情報処理学会九州支部
Event date： 2022.3.1 - 2022.3.2
Language：Japanese Presentation type：Oral presentation (general)
Venue：宮崎大学
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ウィンドウサイズ調整型監視によるリアルタ イム性DDoS攻撃検知手法の検討
溝口 李佳, 臼崎 翔太郎, 油田 健太郎, 山場 久昭, 岡崎 直宣
火の国情報シンポジウム2022 (宮崎大学) 2022.3.1 情報処理学会九州支部
Event date： 2022.3.1 - 2022.3.2
Language：Japanese Presentation type：Oral presentation (general)
Venue：宮崎大学
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複数ウィンドウサイズの効率的監視によるバースト形態に依らない DDoS 攻撃検出手法の検討
臼崎 翔太郎, 油田 健太郎, 山場 久昭, 朴 美娘, 岡崎 直宣
DICOMO2019シンポジウム 情報処理学会
Event date： 2019.7
Language：Japanese Presentation type：Oral presentation (general)
Awards 【 display / non-display 】
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InCit-2025 Best Paper Award
2025.11 InCit2025 Committee An Attempt to Improve the Flow Count Estimation Accuracy During the Collection Phase for Sketch-Reconstruction-Based in-Band Network Telemetry
Shotaro Usuzaki, Kosei Iwasa, Nobuya Takahashi, Kentaro Aburada, Hisaaki Yamaba, Mirang Park, Naonobu Okazaki
Award type：International academic award (Japan or overseas)
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ICGEC-2024 Best Paper Award
2024.8 ICGEC Committee An Attempt to Solve Fill in the Missing Letters CAPTCHA Using Generative AI
Hisaaki Yamaba, Shotaro Usuzaki, Kentaro Aburada, Masayuki Mukunoki, Mirang Park and Naonobu Okazaki
Award type：International academic award (Japan or overseas)
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NBiS 2017 Best Paper Award
2017.8 NBiS Committee Highly Responsive Distributed Denial-of-Service Attacks Detection by Using Real-Time Burst Detection Method
Shotaro Usuzaki, Yuki Arikawa, Hisaaki Yamaba, Kentaro Aburada, Shin-Ichiro Kubota, Mirang Park, Naonobu Okazaki
Award type：Award from international society, conference, symposium, etc. Country：Canada
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化学工学会SIS部会技術賞
2015.4 化学工学会
高塚佳代子, 高橋弘季, 山場 久昭, 久保田真一郎, 岡崎 直宣
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
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DICOMO2014優秀論文賞
2014.8 情報処理学会
横山 絵美里, 宗 裕文, 山場 久昭, 久保田 真一郎, 朴 美娘, 岡崎 直宣
Award type：Award from Japanese society, conference, symposium, etc. Country：Japan
Grant-in-Aid for Scientific Research 【 display / non-display 】
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深層学習を用いた筋電位による多要素個人認証の複数点測定による高精度化
Grant number：24K14948 2024.04 - 2027.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(C)
Authorship：Principal investigator
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AIによって高度化されたサイバー攻撃に対抗する次世代クラウドセキュリティ基盤の構築
Grant number：24K14917 2024.04 - 2027.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(C)
Authorship：Coinvestigator(s)
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あなたのスマホに信用してもらうための三つの方法
Grant number：23HT0193 2023.04 - 2024.03
独立行政法人日本学術振興会 科学研究費補助金 ひらめきときめきサイエンス
Authorship：Principal investigator
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DXの急展開に対応する超強靭なパスワード・リスト攻撃防止基盤の確立
Grant number：22K12013 2022.04 - 2026.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(C)
Authorship：Coinvestigator(s)
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クラウドサービスに対する大規模な分散型攻撃の検知とその規模の縮小化に関する研究
Grant number：21K11849 2021.04 - 2024.03
独立行政法人日本学術振興会 科学研究費補助金 基盤研究(C)
Authorship：Coinvestigator(s)