CAFES: A Collaborative Multi-Agent Framework for Multi-Granular Multimodal Essay Scoring

• URL: http://arxiv.org/abs/2505.13965v1
• Date: Tue, 20 May 2025 06:05:56 GMT
• Title: CAFES: A Collaborative Multi-Agent Framework for Multi-Granular Multimodal Essay Scoring
• Authors: Jiamin Su, Yibo Yan, Zhuoran Gao, Han Zhang, Xiang Liu, Xuming Hu,
• Abstract summary: We introduce CAFES, the first collaborative multi-agent framework specifically designed for AES.<n>It orchestrates three specialized agents: an Initial Scorer for rapid, trait-specific evaluations; a Feedback Pool Manager to aggregate detailed, evidence-grounded strengths; and a Reflective Scorer that iteratively refines scores based on this feedback to enhance human alignment.
• Score: 15.197083495600998
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Automated Essay Scoring (AES) is crucial for modern education, particularly with the increasing prevalence of multimodal assessments. However, traditional AES methods struggle with evaluation generalizability and multimodal perception, while even recent Multimodal Large Language Model (MLLM)-based approaches can produce hallucinated justifications and scores misaligned with human judgment. To address the limitations, we introduce CAFES, the first collaborative multi-agent framework specifically designed for AES. It orchestrates three specialized agents: an Initial Scorer for rapid, trait-specific evaluations; a Feedback Pool Manager to aggregate detailed, evidence-grounded strengths; and a Reflective Scorer that iteratively refines scores based on this feedback to enhance human alignment. Extensive experiments, using state-of-the-art MLLMs, achieve an average relative improvement of 21% in Quadratic Weighted Kappa (QWK) against ground truth, especially for grammatical and lexical diversity. Our proposed CAFES framework paves the way for an intelligent multimodal AES system. The code will be available upon acceptance.

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