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Improving Classification Model Performances using an Active Learning Method to Detect Hate Speech in Twitter

Muhammad Ilham Abidin, Khairil Anwar Notodiputro, Bagus Sartono
Indonesian Journal of Statistics and Its Applications , Volume 5, pp 26-38; doi:10.29244/ijsa.v5i1p26-38

Abstract: Efforts from the police to address hate speech on social media such as Twitter will not be sufficient to rely solely on manual checks. Therefore, it is necessary to use statistical modelling like the classification model to detect hate speech automatically. Classification is a type of predictive modelling to produce accurate predictions based on labelled data. Generally, the available data are usually unlabelled implying that the labelling process needs to be done beforehand. Data labelling is time consuming, high cost, and often fails to produce correct labels. This research aims to improve the performances of classification models by adding a small amount of data through the so called active learning method. The results showed that there was no significant difference in the performances of logistic regression and naïve bayes classification models in detecting hate speech. However, the results also showed that adding data through the active learning method substantially improved the logistics regression performance in detecting hate speech when compared to data addition based on a simple random sampling method. Therefore, the performances of classification models in detecting hate speech on Twitter could be improved by using an active learning method.
Keywords: models in detecting hate speech / classification models in detecting

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