A topic-enhanced recurrent autoencoder model for sentiment analysis of short texts Online publication date: Mon, 12-Oct-2020
by Shaochun Wu; Ming Gao; Qifeng Xiao; Guobing Zou
International Journal of Internet Manufacturing and Services (IJIMS), Vol. 7, No. 4, 2020
Abstract: This paper presents a topic-enhanced recurrent autoencoder model to improve the accuracy of sentiment classification of short texts. First, the concept of recurrent autoencoder is proposed to tackle the problems in recursive autoencoder including 'increasing in computation complexity' and 'ignoring the natural word order'. Then, the recurrent autoencoder model is enhanced with the topic and sentiment information generated by joint sentiment-topic (JST) model. Besides, in order to identify the negations and ironies in short texts, sentiment lexicon is utilised to add feature dimensions for sentence representations. Experiments are performed to determine the feasibility and effectiveness of the model. Compared with recursive autoencoder model, the classification accuracy of our model is improved by about 7.7%.
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