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Multi-source data fusion for aspect-level sentiment classification - 2020

Research Area:  Machine Learning

Abstract:

Neural networks have achieved great success in aspect-level sentiment classification due to their ability to learn sentiment knowledge from text. Generally, the effectiveness of neural networks relies on sufficiently large training corpora. However, existing aspect-level corpora are relatively small, which greatly limits the performance of neural network-based systems. In this paper, we propose a novel approach to aspect-level sentiment classification based on multi-source data fusion, which allows our system to learn sentiment knowledge from different types of resources. Specifically, we design a unified framework to integrate data from aspect-level corpora, sentence-level corpora, and word-level sentiment lexicons. Moreover, we take advantage of BERT, a pre-trained language model based on deep bidirectional Transformers, to generate aspect-specific sentence representations for sentiment classification. We evaluate our approach using laptop and restaurant datasets from SemEval 2014. Experimental results show that our approach consistently outperforms the state-of-the-art methods on all datasets.

Author(s) Name:  Fang Chen,Zhigang Yuan,Yongfeng Huang

Journal name:  Knowledge-Based Systems

Conferrence name:  

Publisher name:  Elsevier

DOI:  10.1016/j.knosys.2019.07.002

Volume Information:  Volume 187, January 2020, 104831