Two Different Summarization Methods at NTCIR3-TSC2: Coverage Oriented and Focus Oriented. - Naoaki Okazaki; Yutaka Matsuo; Naohiro Matsumura; Hironori Tomobe; Mitsuru Ishizuka (NTCIR, 2002)

Mining Social Network of Conference Participants from the Web. - Yutaka Matsuo; Hironori Tomobe; Kôiti Hasida; Mitsuru Ishizuka (Web Intelligence, 2003)

Social Network Extraction of Conference Participants. - Hironori Tomobe; Yutaka Matsuo; Kôiti Hasida; Mitsuru Ishizuka (WWW (Posters), 2003)

Finding Social Network for Trust Calculation. - Yutaka Matsuo; Hironori Tomobe; Kôiti Hasida; Mitsuru Ishizuka (ECAI, 2004)

Discussion Mining: Annotation-Based Knowledge Discovery from Real World Activities. - Katashi Nagao; Katsuhiko Kaji; Daisuke Yamamoto; Hironori Tomobe (PCM (1), 2004)

Discussion Ontology: Knowledge Discovery from Human Activities in Meetings. - Hironori Tomobe; Katashi Nagao (JSAI, 2006)

Robust Estimation of Google Counts for Social Network Extraction. - Yutaka Matsuo; Hironori Tomobe; Takuichi Nishimura (AAAI, 2007)

Public Large Screen Enabled Content Collection and Connection. - Kosuke Numa; Hironori Tomobe; Tatsuo Sugimoto; Masako Miyata; Kiyoko Toriumi; Jun Abe; Koichi Hori (KES (2), 2009)

Citation lag analysis in supply chain research. - Hiroko Nakamura; Shinji Suzuki; Hironori Tomobe; Yuya Kajikawa; Ichiro Sakata (Scientometrics, 2011)