Proposing Internet Analysis for Improvement of Usability on the 3D virtaul shared Space. - Yushi Nakai; Yoshitaka Shibata (ICPADS (2), 2005)

Scalable Collaborative Virtual Environment Considering User's Interest Information. - Yushi Nakai; Naoki Kamon; Yoshitaka Shibata (AINA (2), 2006)

AWide Area Log Analyzing System Based on Mobile Agents. - Takashi Katoh; Hiroki Kuzuno; Takuya Kawahara; Atsumu Watanabe; Yushi Nakai; Bhed Bahadur Bista; Toyoo Takata (CIMCA/IAWTIC, 2006)

Collaborative Virtual Environment Considering Scalability and Usability. - Yushi Nakai; Naoki Kamon; Yoshitaka Shibata (MDM, 2006)

Sclable Collaborative Virtual Environment Considering User's Interests Based on P2P Overlay Network. - Yushi Nakai; Yoshitaka Shibata (CISIS, 2007)