FineSurE: Fine-grained Summarization Evaluation using LLMs

Hwanjun Song, Hang Su, Igor Shalyminov, Jason Cai, Saab Mansour


Abstract
Automated evaluation is crucial for streamlining text summarization benchmarking and model development, given the costly and time-consuming nature of human evaluation. Traditional methods like ROUGE do not correlate well with human judgment, while recently proposed LLM-based metrics provide only summary-level assessment using Likert-scale scores. This limits deeper model analysis, e.g., we can only assign one hallucination score at the summary level, while at the sentence level, we can count sentences containing hallucinations. To remedy those limitations, we propose FineSurE, a fine-grained evaluator specifically tailored for the summarization task using large language models (LLMs). It also employs completeness and conciseness criteria, in addition to faithfulness, enabling multi-dimensional assessment. We compare various open-source and proprietary LLMs as backbones for FineSurE. In addition, we conduct extensive benchmarking of FineSurE against SOTA methods including NLI-, QA-, and LLM-based methods, showing improved performance especially on the completeness and conciseness dimensions. The code is available at https://github.com/DISL-Lab/FineSurE.
Anthology ID:
2024.acl-long.51
Volume:
Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
August
Year:
2024
Address:
Bangkok, Thailand
Editors:
Lun-Wei Ku, Andre Martins, Vivek Srikumar
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
906–922
Language:
URL:
https://aclanthology.org/2024.acl-long.51
DOI:
10.18653/v1/2024.acl-long.51
Bibkey:
Cite (ACL):
Hwanjun Song, Hang Su, Igor Shalyminov, Jason Cai, and Saab Mansour. 2024. FineSurE: Fine-grained Summarization Evaluation using LLMs. In Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 906–922, Bangkok, Thailand. Association for Computational Linguistics.
Cite (Informal):
FineSurE: Fine-grained Summarization Evaluation using LLMs (Song et al., ACL 2024)
Copy Citation:
PDF:
https://aclanthology.org/2024.acl-long.51.pdf