April 2007 - Present, Assitant Professor
School of Information Science, Japan Advanced Institute of Science and Technology Ishikawa, Japan
February 2008 - March 2008, Visiting Professor
Host: Prof. Hui Jiang
Dep. of Computer Science and Engineering, York University
Toronto, Canada
October 2005 - March 2007, Post-docotral Researcher
Advisor: Prof. Yôiti Suzuki
Research Institute of Electrical Communication, Tohoku University
Sendai, Japan