Site Agnostic Approach to Early Detection of Cyberbullying on Social Media Networks

The rise in the use of social media networks has increased the prevalence of cyberbullying, and time is paramount to reduce the negative effects that derive from those behaviours on any social media platform. This paper aims to study the early detection problem from a general perspective by carrying...

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Published inSensors (Basel, Switzerland) Vol. 23; no. 10; p. 4788
Main Authors López-Vizcaíno, Manuel, Nóvoa, Francisco J, Artieres, Thierry, Cacheda, Fidel
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 16.05.2023
MDPI
Subjects
Analysis
Bullying
Cyberbullying
Datasets
Digital media
early detection
Machine learning
multiple-instance learning
Performance enhancement
Performance evaluation
Sentiment analysis
Social media
Social networks
Support vector machines
text features
User behavior
cyberbullying
early detection
multiple-instance learning
text features
machine learning
social networks
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Summary:The rise in the use of social media networks has increased the prevalence of cyberbullying, and time is paramount to reduce the negative effects that derive from those behaviours on any social media platform. This paper aims to study the early detection problem from a general perspective by carrying out experiments over two independent datasets (Instagram and Vine), exclusively using users' comments. We used textual information from comments over baseline early detection models (fixed, threshold, and dual models) to apply three different methods of improving early detection. First, we evaluated the performance of Doc2Vec features. Finally, we also presented multiple instance learning (MIL) on early detection models and we assessed its performance. We applied timeawareprecision (TaP) as an early detection metric to asses the performance of the presented methods. We conclude that the inclusion of Doc2Vec features improves the performance of baseline early detection models by up to 79.6%. Moreover, multiple instance learning shows an important positive effect for the Vine dataset, where smaller post sizes and less use of the English language are present, with a further improvement of up to 13%, but no significant enhancement is shown for the Instagram dataset.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s23104788