Effects of Feature Extraction and Classification Methods on Cyberbully Detection
Öz
Cyberbullying is defined as an aggressive, intentional action against a defenseless person by using the Internet, or other electronic contents. Researchers have found that many of the bullying cases have tragically ended in suicides; hence automatic detection of cyberbullying has become important. In this study we show the effects of feature extraction, feature selection, and classification methods that are used, on the performance of automatic detection of cyberbullying. To perform the experiments FormSpring.me dataset is used and the effects of preprocessing methods; several classifiers like C4.5, Naïve Bayes, kNN, and SVM; and information gain and chi square feature selection methods are investigated. Experimental results indicate that the best classification results are obtained when alphabetic tokenization, no stemming, and no stopwords removal are applied. Using feature selection also improves cyberbully detection performance. When classifiers are compared, C4.5 performs the best for the used dataset.
Anahtar Kelimeler
Kaynakça
- [1] Snakenborg, J., Van Acker, R., and Gable, R. A. 2011. Cyberbullying: Prevention and Intervention to Protect our Children and Youth. Preventing School Failure: Alternative Education for Children and Youth, 55(2011), 88-95.
- [2] Smith, P.K., Mahdavi, J., Carvalho, M., Fisher, S., Russell, S., and Tippett, N. 2008. Cyberbullying: its Nature and Impact in Secondary School Pupils. Journal of Child Psychology and Psychiatry 49(2008), 376–385.
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Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
-
Yayımlanma Tarihi
15 Nisan 2017
Gönderilme Tarihi
14 Haziran 2016
Kabul Tarihi
-
Yayımlandığı Sayı
Yıl 2017 Cilt: 21 Sayı: 1
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