Associate Professor, Ph.D. (Engineering)
E-mail: yuji
TEL: +81-52-872-5037
FAX: +81-52-872-5037
Research Course: Mathematical and Material Science
URL http://www.nsc.nagoya-cu.ac.jp/~yuji/  
Specialties Intelligent Informatics, Information Security
Keywords Security, Biometrics Authentication, Wireless Sensor Network, Immunity-based System
Current Research (1) Behavior-based Biometrics Authentication on Smart Phone:
We develop a behavior-based biometrics authentication system to continuously monitor user behaviors, for example, fingers behaviors on touch screen, and gait features during walk using smart phone.

(2) Failure Detection and Repair in Wireless Sensor Network:
We address effective schemes for fault detection of abnormal data or repair of failure sensors in ad-hoc wireless sensor network.

(3) Immunity-based Distributed Diagnosis and Information Security:
We study some autonomous distributed diagnosis models based on the informational features of the biological immune system, and then apply the models to information security.
Selected Papers Toward an Immunity-based Gait Recognition on Smart Phone: A Study of Feature Selection and Walking State Classification, Procedia Computer Science, Vol.96, pp.1790-1800 (2016).

Toward Application of Immunity-based Model to Gait Recognition Using Smart Phone Sensors: A Study of Various Walking States, Procedia Computer Science, Vol.60, pp.1856-1864 (2015).

Influence of Holding Smart Phone for Acceleration-based Gait Authentication, Proc. of IEEE 2014 International Conference on Emerging Security Technologies (EST), pp.30-33 (2014).

Analogy between Immune System and Sensor Replacement Using Mobile Robots on Wireless Sensor Networks, Procedia Computer Science, Vol.35, pp.1352-1359 (2014).

Development of Android Application for Touch Screen-Based Authentication, International Workshop on Smart Info-Media Systems in Asia (SISA), pp.376-379 (2013).

A Study of Accelerometer-based Authentication on Walking with Smart Phone, International Workshop on Smart Info-Media Systems in Asia (SISA), pp.372-375 (2013).

Toward Introduction of Immunity-based Model to Continuous Behavior-based User Authentication on Smart Phone, Procedia Computer Science, Vol.22, pp.1319-1327 (2013).

A Multipath Immunity-based Statistical En-route Filtering in Wireless Sensor Networks, The Seventeenth International Symposium on Artificial Life and Robotics (AROB 17th '12), pp.329-332 (2012).

Extraction of Operational Behavior for User Identification on Smart Phone, The Seventeenth International Symposium on Artificial Life and Robotics (AROB 17th '12), pp.333-336 (2012).