Papers - YAMABA Hisaaki
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A study on the CAPTHA Using Mouse Tracking
Ryohei Tatsuda, Hisaaki Yamana, Shin-Ichiro Kubota, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 46 ) 257 - 261 2017.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Evaluation of Feature Values of Surface Electromyograms for User Authentication of Mobile Devices
Tokiyoshi Kurogi, Hisaaki Yamana, Shin-Ichiro Kubota, Tetsuro Katayama, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 46 ) 251 - 255 2017.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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A Proposal of a Mitigation Method of HTTP Flood Attacks Using a Server for Detailed Examination of Pseudo Positive Accesses
Yuki Arikawa, Shin-Ichiro Kubota, Hisaaki Yamana, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 46 ) 247 - 250 2017.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Proposal of Puzzle Authentication Method with Video Recording Attack Resistance
Koki Hinokuma, Hisaaki Yamana, Shin-Ichiro Kubota, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 46 ) 263 - 267 2017.7
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Evaluation of feature values of surface electromyograms for user authentication on mobile devices Reviewed
Yamaba H., Kurogi A., Kubota S., Katayama T., Park M., Okazaki N.
Artificial Life and Robotics 22 ( 1 ) 108 - 112 2017.3
Language：English Publishing type：Research paper (scientific journal) Publisher：Artificial Life and Robotics
© 2016, ISAROB. At the present time, mobile devices, such as tablet-type PCs and smart phones, have widely penetrated into our daily lives. Therefore, an authentication method that prevents shoulder surfing is needed. We are investigating a new user authentication method for mobile devices that use surface electromyogram (s-EMG) signals, not screen touching. The s-EMG signals, which are generated by the electrical activity of muscle fibers during contraction, are detected over the skin surface. Muscle movement can be differentiated by analyzing the s-EMG. In this paper, a method that uses a list of gestures as a password is proposed. And also, results of experiments are presented that was carried out to investigate the performance of the method extracting feature values from s-EMG signals (using the Fourier transform) adopted in this research. Myo T M , which is the candidate of s-EMG measurement device used in a prototype system for future substantiative experiments, was used in the experiment together with the s-EMG measuring device used in the previous research to investigate its performance.
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Development of a Tool to Keep Consistency between a Model and a Source Code in Software Development Using MDA Reviewed
Y. Kikkawa, T. Katayama, Y. Kita, H. Yamaba, K. Aburada, N. Okazaki
Journal of Robotics, Networking and Artificial Life 3 ( 4 ) 231 - 235 2017.3
Language：English Publishing type：Research paper (scientific journal)
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Prototype of Test Cases Automatic Generation Tool BWDM Based on Boundary Value Analysis with VDM++ Reviewed
H. Tachiyama, T. Katayama, Y. Kita, H. Yamaba, and N. Okazaki
Proceedings of International Conference on Artificial Life and Robotics (ICAROB 2017) 275 - 278 2017.1
Language：English Publishing type：Research paper (international conference proceedings)
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Improvement of Transitions and Flow Visualization TFVIS for Exception Handling Reviewed
T. Sato, T. Katayama, Y. Kita, H. Yamaba, and N. Okazaki
Proceedings of International Conference on Artificial Life and Robotics (ICAROB 2017) 283 - 287 2017.1
Language：English Publishing type：Research paper (international conference proceedings)
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Prototype of Refactoring Support Tool MCC Focusing on the Naming of Variables Reviewed
S. Tanoue, T. Katayama, Y. Kita, H. Yamaba, and N. Okazaki
Proceedings of International Conference on Artificial Life and Robotics (ICAROB 2017) 279 - 282 2017.1
Language：English Publishing type：Research paper (international conference proceedings)
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An attempt to use support vector machines for a user authentication system using surface electromyogram signals Reviewed
H.Yamaba, T.Kurogi, S.Kubota, T.Katayama, M. Park, N.Okazak
International Symposium on Artificial Life and Robotics 541 - 544 2017.1
Language：English Publishing type：Research paper (international conference proceedings)
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Improvement of Decision Table Automatic Generation Tool VDTable for let in Statement Reviewed
Y. Huang, T. Katayama, Y. Kita, H. Yamaba, and N. Okazaki
Proceedings of International Conference on Artificial Life and Robotics (ICAROB 2017) 271 - 274 2017.1
Language：English Publishing type：Research paper (international conference proceedings)
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Takatsuka Kayoko, Sekiguchi Satoshi, Yamaba Hisaaki, Kubota Shinichiro, Okazaki Naonobu
KAGAKU KOGAKU RONBUNSHU 43 ( 2 ) 117 - 122 2017
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Society of Chemical Engineers, Japan
<p>Foot-and-mouth disease (FMD), a "specific domestic animal infectious disease," needs biosecurity in the early stage but cannot be detected during the incubation period. This problem is dealt with by use of a detection agent and by immediate culling when the outbreak begins. However, developing a detection agent raises budgetary problems, and securing sites for culling and burial takes time. In this study, we adopted an epidemiological model known as the Keeling Model and developed a mathematical method to detect infected farms during the incubation period before clinical symptoms first appear. Our model based on the Keeling Model estimates the unobservable variate λ (the infection index), which indicates the situation of the susceptible farms with the observable variates of whether or not surrounding farms infected, the number and species of animals, and the distances between farms. In addition, we devised a model (Infection Estimating Model) and an estimation approach to estimate whether or not a farm is infected. The proposed method was applied to the case of FMD that occurred in Miyazaki Prefecture in 2010, and the validity of our proposal was confirmed. Moreover, as a result of an experiment to compare estimation accuracy, a universal factor was discovered that will improve estimation accuracy.</p>
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On Accuracy Improvement in Surroundings Estimation for Surroundings Adaptable Integrated Authentication Method
Hisaaki Yamana, Hirotaka Nagano, Kayoko Takatsuka, Shin-Ichiro Kubota, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 45 ) 243 - 247 2016.8
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Development of the Mathematic Technique to Detect Infections-farm Which Is in Latency Period of Foot-and-mouth Disease
Kayoko Takatsuka, Koki Takahashi, Hisaaki Yamana, Shin-Ichiro Kubota, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 45 ) 249 - 253 2016.8
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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An attempt to use a gesture control armband for a user authentication system using surface electromyograms Reviewed
H.Yamaba, A.Kurogi, S.Kubota, T.Katayama, N.Okazak
International Symposium on Artificial Life and Robotics 342 - 345 2016.1
Language：English Publishing type：Research paper (international conference proceedings)
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Development of a Tool to Keep Consistency between a Model and a Source Code in Software Development Using MDA
Y. Kikkawa, T. Katayama, Y. Kita, H. Yamaba, K. Aburada, and N. Okazaki
Proceedings of International Conference on Artificial Life and Robotics (ICAROB 2015) 340 - 344 2016.1
Language：English Publishing type：Research paper (international conference proceedings)
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Implementation and Evaluation of Index Poisoning Method Using the Clustering for Winny Network Reviewed
56 ( 12 ) 2395 - 2504 2015.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Prototype of a Decision Table Generation Tool from the Formal Specification Reviewed
T. Katayama, K. Nishikawa, Y. Kita, H. Yamaba, K. Aburada, and N. Okazaki
Journal of Robotics, Networking and Artificial Life 2 ( 3 ) 205 - 208 2015.12
Language：English Publishing type：Research paper (scientific journal)
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TFVIS: a Supporting Debugging Tool for Java Programs by Visualizing Data Transitions and Execution Flows Reviewed
T. Katayama, H. Nakamura, Y. Kita, H. Yamaba, K. Aburada, and N. Okazaki
Journal of Robotics, Networking and Artificial Life 2 ( 3 ) 177 - 181 2015.12
Language：English Publishing type：Research paper (scientific journal)
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An Attempt of User Authentication Method Using Surface Electromyogram Signals
Hisaaki Yamaba,So Nagatomo, Shinichiro Kubota, Naonobu Okazaki
MEMOIRS OF THE FACULTY OF ENGINEERING UNIVERSITY OF MIYAZAKI ( 44 ) 235 - 239 2015.8
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)