A Machine Learning approach for Sentiment Analysis for Italian Reviews in Healthcare

Luca Bacco, Andrea Cimino, Luca Paulon, Mario Merone, Felice Dell'Orletta
2020 Italian Conference on Computational Linguistics  
In this paper, we present our approach to the task of binary sentiment classification for Italian reviews in healthcare domain. We first collected a new dataset for such domain. Then, we compared the results obtained by two different systems, one including a Support Vector Machine and one with BERT. For the first one, we linguistic pre-processed the dataset to extract hand-crafted features exploited by the classifier. For the second one, we oversampled the dataset to achieve better results. Our
more » ... results show that the SVMbased system, without the worry of having to oversample, has better performance than the BERT-based one, achieving an F1-score of 91.21%.
dblp:conf/clic-it/BaccoCPMD20 fatcat:24byb4shlnaxnbyy52j34j5qoq