Detecting Cyberbullying Entries on Informal School Websites Based on Category Relevance Maximization Taisei Nitta author Fumito Masui author Michal Ptaszynski author Yasutomo Kimura author Rafal Rzepka author Kenji Araki author 2013-10 text Proceedings of the Sixth International Joint Conference on Natural Language Processing Ruslan Mitkov editor Jong C Park editor Asian Federation of Natural Language Processing Nagoya, Japan conference publication nitta-etal-2013-detecting https://aclanthology.org/I13-1066/ 2013-10 579 586