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An Efficacy Comparison of Supervised Machine Learning Classifiers for Cyberbullying Detection and Prediction

International Journal of Bullying Prevention, ISSN: 2523-3661
2024
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Article Description

In the face of increasing cyberbullying incidents on online social networking sites (SNS), there is a growing demand for robust detection and prediction mechanisms to foster a safer digital environment. This paper investigates the performance of several supervised machine learning (ML) classifiers in terms of sentiment analysis and text categorization related to cyberbullying. It introduces frameworks for text pre-processing and classification with multiple cyberbullying classes like religion, age, gender, and ethnicity. Utilizing a comprehensive dataset of cyberbullying incidents collected from X (formerly Twitter), this study evaluates multiple supervised learning classifiers to identify the best one with the highest accuracy. The best-performing classifier is then used to develop a robust model for cyberbullying detection and prediction. In addition, feature extraction and model interpretability are achieved to learn more about how these classifiers make decisions when it comes to cyberbullying. The main aim of this research is to contribute practical solutions by identifying the most suitable machine learning models for diverse social networking sites datasets. Through performance evaluation, it is observed that the Random Forest classifier achieves an accuracy of 94%, outperforming the other classifiers and it is selected for the model development. Further, the developed model is trained, tested, and validated on different SNS platform datasets. Finally, the developed model is able to accurately perform detection and prediction of cyberbullying text as per the specified classes. This study has the potential to improve the model by applying deep learning and natural language processing (NLP) techniques to effectively detect cyberbullying in cyberspace.

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