SENTIMENT ANALYSIS OF NEWS HEADLINES USING SIMPLE TRANSFORMERS

Abstract

With the rate at which the data is being generated, it is vital to use it and get some insights from it. When reporting on events, news expresses the opinions of news entities like people, locations, and things. In this paper, we obtain the sentiment of the news headlines using a new technique called transformers, in particular simple transformers that have been a significant advancement in the natural language processing field. Sentiment Analysis has been performed using the four transformers model. These models are pre-trained on extensive data, and we have fine-tuned them by training them on our own news headlines dataset. For our sentiment analysis task, classification models (specific simple transformer model) are used to classify news headlines as negative, neutral, positive. The idea behind taking four different models that are Bidirectional Encoder Representations from Transformers (BERT) base-cased [1], Robustly optimized BERT approach (RoBERTa) base [1], Distilled BERT (DistilBERT) base-cased [1], XLNet base-cased [1], is the different dataset on which they are pre-trained, parameters used by them, and different method used by them, which improve their performance significantly in comparison to different machine learning classifiers and prior deep learning models. The model that performed the best is bert-base-cased with Matthews Correlation Coefficient (MCC) score of 90.1%, an F1 score of 93.6%, and an Accuracy score of 93.6%.