Group-Oriented Communication: Concept and Network Architecture. - Yousuke Takahashi; Kouhei Sugiyama; Hiroyuki Ohsaki; Makoto Imase; Takeshi Yagi; Junichi Murayama (ICCCN, 2008)

NMF: Network Mining Framework Using Topological Structure of Complex Networks. - Kouhei Sugiyama; Hiroyuki Ohsaki; Makoto Imase; Takeshi Yagi; Junichi Murayama (SERVICES II, 2008)

Estimating Node Characteristics from Topological Structure of Social Networks. - Kouhei Sugiyama; Hiroyuki Ohsaki; Makoto Imase (IEICE Trans. Commun., 2009)