This paper describes our submissions to SemEval-2022 subtask 4-A - 'Patronizing and Condescending Language Detection: Binary Classification". We developed different models for this subtask. We applied 11 supervised machine learning methods and 9 preprocessing methods. Our best submission was a model we built with BertForSequenceClassification. Our experiments indicate that pre-processing stage is a must for a successful model. The dataset for Subtask 1 is highly imbalanced. The F1-scores on the oversampled imbalanced training dataset were higher than the results on the original training dataset.
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HaCohen-Kerner, Y., Meyrowitsch, I., & Fchima, M. (2022). JCT at SemEval-2022 Task 4-A: Patronism Detection in Posts Written in English using Pre-processing Methods and various Machine Learning Methods. In SemEval 2022 - 16th International Workshop on Semantic Evaluation, Proceedings of the Workshop (pp. 519–524). Association for Computational Linguistics (ACL). https://doi.org/10.18653/v1/2022.semeval-1.72