Generating diverse katakana variants based on phonemic mapping. - Kazuhiro Seki; Hiroyuki Hattori; Kuniaki Uehara (SIGIR, 2008)

Research Note: Statistical Analysis on E-mail Magazines used by Japanese Prime Ministers. - Yasuharu Ukai; Hiroyuki Hattori (Rev. Socionetwork Strateg., 2011)