Enhancing Multi-party Dialogue Discourse Parsing with Explanation Generation

Shannan Liu, Peifeng Li, Yaxin Fan, Qiaoming Zhu


Abstract
Multi-party dialogue discourse parsing is an important and challenging task in natural language processing (NLP). Previous studies struggled to fully understand the deep semantics of dialogues, especially when dealing with complex topic interleaving and ellipsis. To address the above issues, we propose a novel model DDPE (Dialogue Discourse Parsing with Explanations) to integrate external knowledge from Large Language Models (LLMs), which consists of three components, i.e., explanation generation, structural parsing, and contrastive learning. DDPE employs LLMs to generate explanatory and contrastive information about discourse structure, thereby providing additional reasoning cues that enhance the understanding of dialogue semantics. The experimental results on the two public datasets STAC and Molweni show that our DDPE significantly outperforms the state-of-the-art (SOTA) baselines.
Anthology ID:
2025.coling-main.103
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:
1531–1544
Language:
URL:
https://aclanthology.org/2025.coling-main.103/
DOI:
Bibkey:
Cite (ACL):
Shannan Liu, Peifeng Li, Yaxin Fan, and Qiaoming Zhu. 2025. Enhancing Multi-party Dialogue Discourse Parsing with Explanation Generation. In Proceedings of the 31st International Conference on Computational Linguistics, pages 1531–1544, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
Enhancing Multi-party Dialogue Discourse Parsing with Explanation Generation (Liu et al., COLING 2025)
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PDF:
https://aclanthology.org/2025.coling-main.103.pdf