Hate speech detection in Twitter using hybrid embeddings and improved cuckoo search-based neural networks
| Autor: | Friday Thomas Ibharalu, Femi Emmanuel Ayo, Olusegun Folorunso, Idowu Ademola Osinuga |
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| Rok vydání: | 2020 |
| Předmět: |
Voice activity detection
General Computer Science Artificial neural network business.industry Computer science Feature extraction Inference 020206 networking & telecommunications 02 engineering and technology Machine learning computer.software_genre Expression (mathematics) Naive Bayes classifier Recurrent neural network 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Artificial intelligence business Cuckoo search computer |
| Zdroj: | International Journal of Intelligent Computing and Cybernetics. 13:485-525 |
| ISSN: | 1756-378X |
| DOI: | 10.1108/ijicc-06-2020-0061 |
| Popis: | PurposeHate speech is an expression of intense hatred. Twitter has become a popular analytical tool for the prediction and monitoring of abusive behaviors. Hate speech detection with social media data has witnessed special research attention in recent studies, hence, the need to design a generic metadata architecture and efficient feature extraction technique to enhance hate speech detection.Design/methodology/approachThis study proposes a hybrid embeddings enhanced with a topic inference method and an improved cuckoo search neural network for hate speech detection in Twitter data. The proposed method uses a hybrid embeddings technique that includes Term Frequency-Inverse Document Frequency (TF-IDF) for word-level feature extraction and Long Short Term Memory (LSTM) which is a variant of recurrent neural networks architecture for sentence-level feature extraction. The extracted features from the hybrid embeddings then serve as input into the improved cuckoo search neural network for the prediction of a tweet as hate speech, offensive language or neither.FindingsThe proposed method showed better results when tested on the collected Twitter datasets compared to other related methods. In order to validate the performances of the proposed method, t-test and post hoc multiple comparisons were used to compare the significance and means of the proposed method with other related methods for hate speech detection. Furthermore, Paired Sample t-Test was also conducted to validate the performances of the proposed method with other related methods.Research limitations/implicationsFinally, the evaluation results showed that the proposed method outperforms other related methods with mean F1-score of 91.3.Originality/valueThe main novelty of this study is the use of an automatic topic spotting measure based on naïve Bayes model to improve features representation. |
| Databáze: | OpenAIRE |
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