Detecting Cyberbullying Entries on Informal School Websites Based on Category Relevance Maximization. - Taisei Nitta; Fumito Masui; Michal Ptaszynski; Yasutomo Kimura; Rafal Rzepka; Kenji Araki (IJCNLP, 2013)

Macroanalysis of Microblogs: An Empirical Study of Communication Strategies on Twitter During Disasters and Elections. - Yuuto Fukushima; Fumito Masui; Michal Ptaszynski; Yoko Nakajima; Keisuke Watanabe; Ryotaro Kawaishi; Taisei Nitta; Ryoya Sato (AAAI Spring Symposia, 2014)

Sustainable cyberbullying detection with category-maximized relevance of harmful phrases and double-filtered automatic optimization. - Michal Ptaszynski; Fumito Masui; Taisei Nitta; Suzuha Hatakeyama; Yasutomo Kimura; Rafal Rzepka; Kenji Araki (Int. J. Child Comput. Interact., 2016)