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In the Service of Online Order : Tackling Cyber-Bullying with Machine Learning and Affect Analysis

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Title: In the Service of Online Order : Tackling Cyber-Bullying with Machine Learning and Affect Analysis
Authors: Ptaszynski, Michal Browse this author
Dybala, Pawel Browse this author
Matsuba, Tatsuaki Browse this author
Masui, Fumito Browse this author
Rzepka, Rafal Browse this author →KAKEN DB
Araki, Kenji Browse this author
Momouchi, Yoshio Browse this author
Keywords: Cyber-bullying
Web blogs
Onilne forums
Issue Date: Sep-2010
Publisher: DLINE
Journal Title: International Journal of Computational Linguistics Research
Volume: 1
Issue: 3
Start Page: 135
End Page: 154
Abstract: One of the burning problems lately in Japan has been cyber-bullying, or slandering and bullying people online. The problem has been especially noticed on unofficial Web sites of Japanese schools. Volunteers consisting of school personnel and PTA (Parent-Teacher Association) members have started Online Patrol to spot malicious contents within Web forums and blogs. In practise, Online Patrol assumes reading through the whole Web contents, which is a task difficult to perform manually. With this paper we introduce a research intended to help PTA members perform Online Patrol more efficiently. We aim to develop a set of tools that can automatically detect malicious entries and report them to PTA members. First, we collected cyber-bullying data from unofficial school Web sites. Then we performed analysis of this data in two ways. Firstly, we analysed the entries with a multifaceted affect analysis system in order to find distinctive features for cyber-bullying and apply them to a machine learning classifier. Secondly, we applied a SVM based machine learning method to train a classifier for detection of cyber-bullying. The system was able to classify cyber-bullying entries with 88.2% of balanced F-score.
Rights: http://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/63640
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Rzepka, Rafal

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