Papers › Seeking Common but Distinguishing Difference, A Joint Aspect-based Sentiment Analysis Model

Seeking Common but Distinguishing Difference, A Joint Aspect-based Sentiment Analysis Model

18 Nov 2021EMNLP 2021 11arXiv:2111.09634archive 2025-07-28

Hongjiang Jing, Zuchao Li, Hai Zhao, Shu Jiang

Aspect-based sentiment analysis (ABSA) task consists of three typical subtasks: aspect term extraction, opinion term extraction, and sentiment polarity classification. These three subtasks are usually performed jointly to save resources and reduce the error propagation in the pipeline. However, most of the existing joint models only focus on the benefits of encoder sharing between subtasks but ignore the difference. Therefore, we propose a joint ABSA model, which not only enjoys the benefits of encoder sharing but also focuses on the difference to improve the effectiveness of the model. In detail, we introduce a dual-encoder design, in which a pair encoder especially focuses on candidate aspect-opinion pair classification, and the original encoder keeps attention on sequence labeling. Empirical results show that our proposed model shows robustness and significantly outperforms the previous state-of-the-art on four benchmark datasets.

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Aspect-Based Sentiment AnalysisAspect-Based Sentiment Analysis (ABSA)Sentiment AnalysisTerm Extraction

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