Extraction of Hidden Common Interests between People Using New Social-Graph Representation. - Kazufumi Yogo; Akihiro Kida; Ryoichi Shinkuma; Tatsuro Takahashi; Hiroyuki Kasai; Kazuhiro Yamaguchi (ICCCN, 2011)

System Design for Estimating Social Relationships from Sensing Data. - Akihiro Kida; Tatsuro Takahashi; Ryoichi Shinkuma; Hiroyuki Kasai; Kazuhiro Yamaguchi; Oscar Mayora (AINA Workshops, 2013)