This paper provides a method to classify sentiment with robust model based ensemble methods. We preprocess tweet data to enhance coverage of tokenizer. To reduce domain bias, we first train tweet dataset for pre-trained language model. Besides, each classifier has its strengths and weakness, we leverage different types of models with ensemble methods: average and power weighted sum. From the experiments, we show that our approach has achieved positive effect for sentiment classification. Our system reached third place among 26 teams from the evaluation in SocialNLP 2020 EmotionGIF competition.
@article{arxiv.2007.02259,
title = {EmotionGIF-Yankee: A Sentiment Classifier with Robust Model Based Ensemble Methods},
author = {Wei-Yao Wang and Kai-Shiang Chang and Yu-Chien Tang},
journal= {arXiv preprint arXiv:2007.02259},
year = {2020}
}
Comments
EmotionGIF 2020, the shared task of SocialNLP 2020