Modern approaches to detect and classify comment toxicity using neural networks

S. V. Morzhov

Modelirovanie i analiz informacionnyh sistem, Tome 27 (2020) no. 1, pp. 48-61

Résumé

The growth of popularity of online platforms which allow users to communicate with each other, share opinions about various events, and leave comments boosted the development of natural language processing algorithms. Tens of millions of messages per day are published by users of a particular social network need to be analyzed in real time for moderation in order to prevent the spread of various illegal or offensive information, threats and other types of toxic comments. Of course, such a large amount of information can be processed quite quickly only automatically. That is why there is a need to and a way to teach computers to “understand” a text written by humans. It is a non-trivial task even if the word “understand” here means only “to classify”. The rapid evolution of machine learning technologies has led to ubiquitous implementation of new algorithms. A lot of tasks, which for many years were considered almost impossible to solve, are now quite successfully solved using deep learning technologies. This article considers algorithms built using deep learning technologies and neural networks which can successfully solve the problem of detection and classification of toxic comments. In addition, the article presents the results of the developed algorithms, as well as the results of the ensemble of all considered algorithms on a large training set collected and tagged by Google and Jigsaw.

Détail

Keywords: toxicity, Natural Language Processing, deep learning, word embedding, GloVe, recurrent neural networks, convolutional neural networks, CNN, LSTM
Mots-clés : NLP, FastText, GRU.