Leveraging LLMs as Meta-Judges: A Multi-Agent Framework for Evaluating LLM Judgments

Fuente: arXiv
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Auteurs principaux: Li, Yuran, Mohamud, Jama Hussein, Sun, Chongren, Wu, Di, Boulet, Benoit
Format: Preprint
Publié: 2025
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author Li, Yuran
Mohamud, Jama Hussein
Sun, Chongren
Wu, Di
Boulet, Benoit
author_facet Li, Yuran
Mohamud, Jama Hussein
Sun, Chongren
Wu, Di
Boulet, Benoit
contents Large language models (LLMs) are being widely applied across various fields, but as tasks become more complex, evaluating their responses is increasingly challenging. Compared to human evaluators, the use of LLMs to support performance evaluation offers a more efficient alternative. However, most studies focus mainly on aligning LLMs' judgments with human preferences, overlooking the existence of biases and mistakes in human judgment. Furthermore, how to select suitable LLM judgments given multiple potential LLM responses remains underexplored. To address these two aforementioned issues, we propose a three-stage meta-judge selection pipeline: 1) developing a comprehensive rubric with GPT-4 and human experts, 2) using three advanced LLM agents to score judgments, and 3) applying a threshold to filter out low-scoring judgments. Compared to methods using a single LLM as both judge and meta-judge, our pipeline introduces multi-agent collaboration and a more comprehensive rubric. Experimental results on the JudgeBench dataset show about 15.55\% improvement compared to raw judgments and about 8.37\% improvement over the single-agent baseline. Our work demonstrates the potential of LLMs as meta-judges and lays the foundation for future research on constructing preference datasets for LLM-as-a-judge reinforcement learning.
format Preprint
id arxiv_https___arxiv_org_abs_2504_17087
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Leveraging LLMs as Meta-Judges: A Multi-Agent Framework for Evaluating LLM Judgments
Li, Yuran
Mohamud, Jama Hussein
Sun, Chongren
Wu, Di
Boulet, Benoit
Artificial Intelligence
Large language models (LLMs) are being widely applied across various fields, but as tasks become more complex, evaluating their responses is increasingly challenging. Compared to human evaluators, the use of LLMs to support performance evaluation offers a more efficient alternative. However, most studies focus mainly on aligning LLMs' judgments with human preferences, overlooking the existence of biases and mistakes in human judgment. Furthermore, how to select suitable LLM judgments given multiple potential LLM responses remains underexplored. To address these two aforementioned issues, we propose a three-stage meta-judge selection pipeline: 1) developing a comprehensive rubric with GPT-4 and human experts, 2) using three advanced LLM agents to score judgments, and 3) applying a threshold to filter out low-scoring judgments. Compared to methods using a single LLM as both judge and meta-judge, our pipeline introduces multi-agent collaboration and a more comprehensive rubric. Experimental results on the JudgeBench dataset show about 15.55\% improvement compared to raw judgments and about 8.37\% improvement over the single-agent baseline. Our work demonstrates the potential of LLMs as meta-judges and lays the foundation for future research on constructing preference datasets for LLM-as-a-judge reinforcement learning.
title Leveraging LLMs as Meta-Judges: A Multi-Agent Framework for Evaluating LLM Judgments
topic Artificial Intelligence
url https://arxiv.org/abs/2504.17087