Click-graph modeling for facet attribute estimation of web search queries. - Sumio Fujita; Keigo Machinaga; Georges Dupret (RIAO, 2010)

Japanese Abbreviation Expansion with Query and Clickthrough Logs. - Kei Uchiumi; Mamoru Komachi; Keigo Machinaga; Toshiyuki Maezawa; Toshinori Satou; Yoshinori Kobayashi (IJCNLP, 2011)