Abstract
Dialogue summarization is abstractive in nature, making it suffer from factual errors. The factual correctness of summaries has the highest priority before practical applications. Many efforts have been made to improve faithfulness in text summarization. However, there is a lack of systematic study on dialogue summarization systems. In this work, we first perform the fine-grained human analysis on the faithfulness of dialogue summaries and observe that over 35% of generated summaries are faithfully inconsistent respective the source dialogues. Furthermore, we present a new model-level faithfulness evaluation method. It examines generation models with multi-choice questions created by rule-based transformations. Experimental results show that our evaluation schema is a strong proxy for the factual correctness of summarization models. The human-annotated faithfulness samples and the evaluation toolkit are released to facilitate future research toward faithful dialogue summarization.- Anthology ID:
- 2022.emnlp-main.325
- Volume:
- Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing
- Month:
- December
- Year:
- 2022
- Address:
- Abu Dhabi, United Arab Emirates
- Editors:
- Yoav Goldberg, Zornitsa Kozareva, Yue Zhang
- Venue:
- EMNLP
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 4897–4908
- Language:
- URL:
- https://aclanthology.org/2022.emnlp-main.325
- DOI:
- 10.18653/v1/2022.emnlp-main.325
- Cite (ACL):
- Bin Wang, Chen Zhang, Yan Zhang, Yiming Chen, and Haizhou Li. 2022. Analyzing and Evaluating Faithfulness in Dialogue Summarization. In Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, pages 4897–4908, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
- Cite (Informal):
- Analyzing and Evaluating Faithfulness in Dialogue Summarization (Wang et al., EMNLP 2022)
- PDF:
- https://preview.aclanthology.org/add_acl24_videos/2022.emnlp-main.325.pdf