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Hongli Zhou

4 accepted papers

2026

Lost in Benchmarks? Rethinking Large Language Model Benchmarking with Item Response Theory

AAAI 2026technical

The evaluation of large language models (LLMs) via benchmarks is widespread, yet inconsistencies between different leaderboards and poor separability among top models raise concerns about their ability to accurately reflect authentic model capabilities. This paper provides a critical analysis of ben

Cited by 0SourcePDFScholar
2026

RM-Distiller: Exploiting Generative LLM for Reward Model Distillation

IJCAI 2026

Reward models (RMs) play a pivotal role in aligning large language models (LLMs) with human preferences. Due to the difficulty of obtaining high-quality human preference annotations, distilling preferences from generative LLMs has emerged as a standard practice. However, existing approaches predomin

Cited by 0Scholar
2026

Think-J: Learning to Think for Generative LLM-as-a-Judge

AAAI 2026technical

LLM-as-a-Judge refers to the automatic modeling of preferences for responses generated by Large Language Models (LLMs), which is of significant importance for both LLM evaluation and reward modeling. Although generative LLMs have made substantial progress in various tasks, their performance as LLM-J

Cited by 0SourcePDFScholar
2025

An Empirical Study of LLM-as-a-Judge for LLM Evaluation: Fine-tuned Judge Model is not a General Substitute for GPT-4

ACL 2025finding

Recently, there has been a growing trend of utilizing Large Language Model (LLM) to evaluate the quality of other LLMs. Many studies have fine-tuned judge models based on open-source LLMs for evaluation. While the fine-tuned judge models are claimed to achieve comparable evaluation capability with G…