POP-CEE: Position-oriented Prompt-tuning Model for Causal Emotion Entailment

Zhihan Zhou, Xue Gu, Yujie Zhao, Hao Xu


Abstract
The objective of the Causal Emotion Entailment (CEE) task is to identify the causes of the target emotional utterances in a given conversation. Most existing studies have focused on a fine-tuning paradigm based on a pretrained model, e.g., the BERT model. However, there are gaps between the pretrained task and the CEE task. Although a pretrained model enhances contextual comprehension to some extent, it cannot acquire specific knowledge that is relevant to the CEE task. In addition, in a typical CEE task, there are peculiarities in the distribution of the positions with different emotion types of emotion utterances and cause utterances in conversations. Existing methods employ a fixed-size window to capture the relationship between neighboring conversations; however, these methods ignore the specific semantic associations between emotions and cause utterances. To address these issues, we propose the Position-oriented Prompt-tuning (POP-CEE) model to solve the CEE task in an end-to-end manner. Specifically, we can model the CEE task by designing prompts with multiple unified goals and by exploring the positional relationship between emotion and cause utterances using a position constraint module. Experimental results demonstrate that the proposed POP-CEE model achieves state-of-the-art performance on a benchmark dataset. Ourcode and data can be found at: https://github.com/Zh0uzh/POP-CEE.
Anthology ID:
2024.findings-acl.248
Volume:
Findings of the Association for Computational Linguistics ACL 2024
Month:
August
Year:
2024
Address:
Bangkok, Thailand and virtual meeting
Editors:
Lun-Wei Ku, Andre Martins, Vivek Srikumar
Venue:
Findings
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Publisher:
Association for Computational Linguistics
Note:
Pages:
4199–4210
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URL:
https://aclanthology.org/2024.findings-acl.248
DOI:
Bibkey:
Cite (ACL):
Zhihan Zhou, Xue Gu, Yujie Zhao, and Hao Xu. 2024. POP-CEE: Position-oriented Prompt-tuning Model for Causal Emotion Entailment. In Findings of the Association for Computational Linguistics ACL 2024, pages 4199–4210, Bangkok, Thailand and virtual meeting. Association for Computational Linguistics.
Cite (Informal):
POP-CEE: Position-oriented Prompt-tuning Model for Causal Emotion Entailment (Zhou et al., Findings 2024)
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PDF:
https://aclanthology.org/2024.findings-acl.248.pdf