[English / Japanese]

Tadashi Okoshi, Ph.D.
Project Associate Professor, Graduate School of Media and Governance, Keio University

Tadashi Okoshi is a Project Associate Professor of Graduate School of Media and Governance. He is a computer scientist especially focusing on information and computing systems for supporting our life-long wellbeing. His major is mobile and ubiquitous computing, context-aware computing etc. His recent research works are on human attention management, mobile affective computing, and computing for well-being (WellComp). He holds B.A. in Environmental Information (1998), Master of Media and Governance (2000) from Keio University, M.S. in Computer Science (2006) from Carnegie Mellon University, and Ph.D. in Media and Governance (2015) from Keio University, respectively. He also has over 7 year experiences of entrepreneurship, software architecting, product management, and project management in IT industries (Web2.0, blogging, social networking and social media).


Academic Services

Recent Selected publication

(Access publication page for the complete publication list)

Awards, Recognition and Honors

  • Winner in ACM MobiCom 2016 Mobile App Contest, Oct., 2016.
    M. Sakamura, T. Yonezawa, T. Okoshi, J. Nakazawa, and H. Tokuda, “Lokemon: Location-Specific Monsters as a Sensor”
  • Doctoral Thesis Recommended by IPSJ SIGs, Information Processing society of Japan, Aug. 2016.
  • Most Helpful Organizer at The 14th International Conference on Mobile Systems, Applications, and Services (MobiSys 2016), Jun. 2016.
  • Special Recognition Award in Toyama Civic Tech Day 2015 Hackathon.
  • Best Paper Award in IEEE HealthCom 2014.
    Yuuki Nishiyama, Tadashi Okoshi, Takuro Yonezawa, Jin Nakazawa, Kazunori Takashio, Hideyuki Tokuda, Towards Health Exercise Behavior Change for Teams Using Life-logging, In Proceedings of 2014 IEEE 16th International Conference on e-Health Networking, Applications and Services (IEEE Healthcom 2014), pages 397-403, Natal Brazil, 15 October 2014.
  • Honorable Mention Award in ACM UbiComp 2013)
    K. W. Tan, T. Okoshi, A. Misra, and R. K. Balan. Focus: A usable and effective approach to oled display power management. In Proceedings of the 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing, Ubicomp’13, pages 573-582, New York, NY, USA, 2013. ACM.
  • Digital Design Competition, Open Research Forum at Shonan Fujisawa Campus (SFC), Keio University, 1999.
  • Best Student Presentation Award in the RT-Mach Workshop 1997.


  • Ph.D. in Media and Governance
    Global Environmental System Leader (GESL) (Doctor) program
    Graduate School of Media and Governance, Keio University (2015)
  • M.S. in Computer Science
    CS Department, School of Computer Science, Carnegie Mellon University (2006)
  • Master of Media and Governance
    Graduate School of Media and Governance, Keio University (2000)
  • B.A. in Environmental Information
    Faculty of Environmental Information, Keio University (1998)