Learning with Multiple Stacking for Named Entity Recognition. - Koji Tsukamoto; Yutaka Mitsuishi; Manabu Sassano (CoNLL, 2002)

CTR prediction for contextual advertising: learning-to-rank approach. - Yukihiro Tagami; Shingo Ono; Koji Yamamoto; Koji Tsukamoto; Akira Tajima (AdKDD@KDD, 2013)

Filling context-ad vocabulary gaps with click logs. - Yukihiro Tagami; Toru Hotta; Yusuke Tanaka; Shingo Ono; Koji Tsukamoto; Akira Tajima (KDD, 2014)

Translation method of contextual information into textual space of advertisements. - Yukihiro Tagami; Toru Hotta; Yusuke Tanaka; Shingo Ono; Koji Tsukamoto; Akira Tajima (WWW (Companion Volume), 2014)