Paraphrase Makes Perfect: Leveraging Expression Paraphrase to Improve Implicit Sentiment Learning

Xia Li, Junlang Wang, Yongqiang Zheng, Yuan Chen, Yangjia Zheng


Abstract
Existing implicit sentiment learning methods mainly focus on capturing implicit sentiment knowledge individually, without paying more attention to the potential connection between implicit and explicit sentiment. From a linguistic perspective, implicit and explicit sentiment expressions are essentially similar when conveying the same sentiment polarity for a specific aspect. In this paper, we present an expression paraphrase strategy and a novel sentiment-consistent contrastive learning mechanism to learn the intrinsic connections between implicit and explicit sentiment expressions and integrate them into the model to enhance implicit sentiment learning. We perform extensive experiments on public datasets, and the results show the significant efficacy of our method on implicit sentiment analysis.
Anthology ID:
2025.coling-main.245
Volume:
Proceedings of the 31st International Conference on Computational Linguistics
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Owen Rambow, Leo Wanner, Marianna Apidianaki, Hend Al-Khalifa, Barbara Di Eugenio, Steven Schockaert
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
3631–3647
Language:
URL:
https://aclanthology.org/2025.coling-main.245/
DOI:
Bibkey:
Cite (ACL):
Xia Li, Junlang Wang, Yongqiang Zheng, Yuan Chen, and Yangjia Zheng. 2025. Paraphrase Makes Perfect: Leveraging Expression Paraphrase to Improve Implicit Sentiment Learning. In Proceedings of the 31st International Conference on Computational Linguistics, pages 3631–3647, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
Paraphrase Makes Perfect: Leveraging Expression Paraphrase to Improve Implicit Sentiment Learning (Li et al., COLING 2025)
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PDF:
https://aclanthology.org/2025.coling-main.245.pdf