A System of Learning Links between Utterances with Meta-information in Character based Multi-party Conversation by Decision Tree. - Junpei Nakamura; Yasuhiro Tajima; Yoshiyuki Kotani (WEBIST (2), 2007)

A Proper Approach to Japanese Morphological Analysis: Dictionary, Model, and Evaluation. - Yasuharu Den; Junpei Nakamura; Toshinobu Ogiso; Hideki Ogura (LREC, 2008)