PanguIR Technical Report for NTCIR-18 AEOLLM Task

• URL: http://arxiv.org/abs/2503.04809v2
• Date: Mon, 10 Mar 2025 06:49:01 GMT
• Title: PanguIR Technical Report for NTCIR-18 AEOLLM Task
• Authors: Lang Mei, Chong Chen, Jiaxin Mao,
• Abstract summary: Large language models (LLMs) are increasingly critical and challenging to evaluate.<n>Manual evaluation, while comprehensive, is often costly and resource-intensive.<n>automatic evaluation offers greater scalability but is constrained by the limitations of its evaluation criteria.
• Score: 12.061652026366591
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: As large language models (LLMs) gain widespread attention in both academia and industry, it becomes increasingly critical and challenging to effectively evaluate their capabilities. Existing evaluation methods can be broadly categorized into two types: manual evaluation and automatic evaluation. Manual evaluation, while comprehensive, is often costly and resource-intensive. Conversely, automatic evaluation offers greater scalability but is constrained by the limitations of its evaluation criteria (dominated by reference-based answers). To address these challenges, NTCIR-18 introduced the AEOLLM (Automatic Evaluation of LLMs) task, aiming to encourage reference-free evaluation methods that can overcome the limitations of existing approaches. In this paper, to enhance the evaluation performance of the AEOLLM task, we propose three key methods to improve the reference-free evaluation: 1) Multi-model Collaboration: Leveraging multiple LLMs to approximate human ratings across various subtasks; 2) Prompt Auto-optimization: Utilizing LLMs to iteratively refine the initial task prompts based on evaluation feedback from training samples; and 3) In-context Learning (ICL) Optimization: Based on the multi-task evaluation feedback, we train a specialized in-context example retrieval model, combined with a semantic relevance retrieval model, to jointly identify the most effective in-context learning examples. Experiments conducted on the final dataset demonstrate that our approach achieves superior performance on the AEOLLM task.

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