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Reducing Spurious Correlations in Aspect-based Sentiment Analysis with Explanation from Large Language Models

Qianlong Wang, Keyang Ding, Bin Liang, Min Yang, Ruifeng Xu


Abstract
Recently, aspect-based sentiment analysis (ABSA) models have yielded promising results. However, they are susceptible to learning spurious correlations between certain words of the input text and output labels while modeling the sentiment feature of the aspect. This spurious correlation will potentially undermine the performance of ABSA models. One direct solution for this problem is to make the model see and learn an explanation of sentiment expression rather than certain words. Motivated by this, we exploit explanations for the sentiment polarity of each aspect from large language models (LLMs) to reduce spurious correlations in ABSA. First, we formulate a prompt template that wraps the sentence, an aspect, and the sentiment label. This template is utilized to prompt LLMs to generate an appropriate explanation that states the sentiment cause. Then, we propose two straightforward yet effective methods to leverage the explanation for preventing the learning of spurious correlations. We conducted extensive comparative experiments on five datasets by integrating them with some representative ABSA models. Results show that our methods can achieve performance gains and enhance the performance and generalization ability of ABSA models.
Anthology ID:
2023.findings-emnlp.193
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2023
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2930–2941
Language:
URL:
https://aclanthology.org/2023.findings-emnlp.193
DOI:
10.18653/v1/2023.findings-emnlp.193
Bibkey:
Cite (ACL):
Qianlong Wang, Keyang Ding, Bin Liang, Min Yang, and Ruifeng Xu. 2023. Reducing Spurious Correlations in Aspect-based Sentiment Analysis with Explanation from Large Language Models. In Findings of the Association for Computational Linguistics: EMNLP 2023, pages 2930–2941, Singapore. Association for Computational Linguistics.
Cite (Informal):
Reducing Spurious Correlations in Aspect-based Sentiment Analysis with Explanation from Large Language Models (Wang et al., Findings 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.findings-emnlp.193.pdf