Are Large Language Model-based Evaluators the Solution to Scaling Up Multilingual Evaluation?

Rishav Hada, Varun Gumma, Adrian Wynter, Harshita Diddee, Mohamed Ahmed, Monojit Choudhury, Kalika Bali, Sunayana Sitaram


Abstract
Large Language Models (LLMs) excel in various Natural Language Processing (NLP) tasks, yet their evaluation, particularly in languages beyond the top 20, remains inadequate due to existing benchmarks and metrics limitations. Employing LLMs as evaluators to rank or score other models’ outputs emerges as a viable solution, addressing the constraints tied to human annotators and established benchmarks. In this study, we explore the potential of LLM-based evaluators in enhancing multilingual evaluation by calibrating them against 20K human judgments across three text-generation tasks, five metrics, and eight languages. Our analysis reveals a bias in LLM-based evaluators towards higher scores, underscoring the necessity of calibration with native speaker judgments, especially in low-resource and non-Latin script languages, to ensure accurate evaluation of LLM performance across diverse languages.
Anthology ID:
2024.findings-eacl.71
Volume:
Findings of the Association for Computational Linguistics: EACL 2024
Month:
March
Year:
2024
Address:
St. Julian’s, Malta
Editors:
Yvette Graham, Matthew Purver
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1051–1070
Language:
URL:
https://aclanthology.org/2024.findings-eacl.71
DOI:
Bibkey:
Cite (ACL):
Rishav Hada, Varun Gumma, Adrian Wynter, Harshita Diddee, Mohamed Ahmed, Monojit Choudhury, Kalika Bali, and Sunayana Sitaram. 2024. Are Large Language Model-based Evaluators the Solution to Scaling Up Multilingual Evaluation?. In Findings of the Association for Computational Linguistics: EACL 2024, pages 1051–1070, St. Julian’s, Malta. Association for Computational Linguistics.
Cite (Informal):
Are Large Language Model-based Evaluators the Solution to Scaling Up Multilingual Evaluation? (Hada et al., Findings 2024)
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PDF:
https://aclanthology.org/2024.findings-eacl.71.pdf
Video:
 https://aclanthology.org/2024.findings-eacl.71.mp4