Encoding Sentiment Information into Word Vectors for Sentiment Analysis

Zhe Ye, Fang Li, Timothy Baldwin


Abstract
General-purpose pre-trained word embeddings have become a mainstay of natural language processing, and more recently, methods have been proposed to encode external knowledge into word embeddings to benefit specific downstream tasks. The goal of this paper is to encode sentiment knowledge into pre-trained word vectors to improve the performance of sentiment analysis. Our proposed method is based on a convolutional neural network (CNN) and an external sentiment lexicon. Experiments on four popular sentiment analysis datasets show that this method improves the accuracy of sentiment analysis compared to a number of benchmark methods.
Anthology ID:
C18-1085
Volume:
Proceedings of the 27th International Conference on Computational Linguistics
Month:
August
Year:
2018
Address:
Santa Fe, New Mexico, USA
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
997–1007
Language:
URL:
https://aclanthology.org/C18-1085
DOI:
Bibkey:
Cite (ACL):
Zhe Ye, Fang Li, and Timothy Baldwin. 2018. Encoding Sentiment Information into Word Vectors for Sentiment Analysis. In Proceedings of the 27th International Conference on Computational Linguistics, pages 997–1007, Santa Fe, New Mexico, USA. Association for Computational Linguistics.
Cite (Informal):
Encoding Sentiment Information into Word Vectors for Sentiment Analysis (Ye et al., COLING 2018)
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PDF:
https://preview.aclanthology.org/update-css-js/C18-1085.pdf
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