FIZZ: Factual Inconsistency Detection by Zoom-in Summary and Zoom-out Document

Joonho Yang, Seunghyun Yoon, ByeongJeong Kim, Hwanhee Lee


Abstract
Through the advent of pre-trained language models, there have been notable advancements in abstractive summarization systems. Simultaneously, a considerable number of novel methods for evaluating factual consistency in abstractive summarization systems has been developed. But these evaluation approaches incorporate substantial limitations, especially on refinement and interpretability. In this work, we propose highly effective and interpretable factual inconsistency detection method FIZZ (Factual Inconsistency Detection by Zoom-in Summary and Zoom-out Document) for abstractive summarization systems that is based on fine-grained atomic facts decomposition. Moreover, we align atomic facts decomposed from the summary with the source document through adaptive granularity expansion. These atomic facts represent a more fine-grained unit of information, facilitating detailed understanding and interpretability of the summary’s factual inconsistency. Experimental results demonstrate that our proposed factual consistency checking system significantly outperforms existing systems. We release the code at https://github.com/plm3332/FIZZ.
Anthology ID:
2024.emnlp-main.3
Volume:
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing
Month:
November
Year:
2024
Address:
Miami, Florida, USA
Editors:
Yaser Al-Onaizan, Mohit Bansal, Yun-Nung Chen
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
30–45
Language:
URL:
https://aclanthology.org/2024.emnlp-main.3
DOI:
Bibkey:
Cite (ACL):
Joonho Yang, Seunghyun Yoon, ByeongJeong Kim, and Hwanhee Lee. 2024. FIZZ: Factual Inconsistency Detection by Zoom-in Summary and Zoom-out Document. In Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing, pages 30–45, Miami, Florida, USA. Association for Computational Linguistics.
Cite (Informal):
FIZZ: Factual Inconsistency Detection by Zoom-in Summary and Zoom-out Document (Yang et al., EMNLP 2024)
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PDF:
https://aclanthology.org/2024.emnlp-main.3.pdf
Software:
 2024.emnlp-main.3.software.zip