MPBench: A Comprehensive Multimodal Reasoning Benchmark for Process Errors Identification

• URL: http://arxiv.org/abs/2503.12505v1
• Date: Sun, 16 Mar 2025 13:50:38 GMT
• Title: MPBench: A Comprehensive Multimodal Reasoning Benchmark for Process Errors Identification
• Authors: Zhaopan Xu, Pengfei Zhou, Jiaxin Ai, Wangbo Zhao, Kai Wang, Xiaojiang Peng, Wenqi Shao, Hongxun Yao, Kaipeng Zhang,
• Abstract summary: Reasoning is an essential capacity for large language models (LLMs) to address complex tasks.<n>Process-level reward models (PRMs) were proposed to provide step-wise rewards that facilitate reinforcement learning and data production.<n>Existing benchmarks of PRMs are text-based and focus on error detection, neglecting other scenarios like reasoning search.<n>MPBench is a comprehensive, multi-task, multimodal benchmark designed to systematically assess the effectiveness of PRMs in diverse scenarios.
• Score: 27.594868471770475
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Reasoning is an essential capacity for large language models (LLMs) to address complex tasks, where the identification of process errors is vital for improving this ability. Recently, process-level reward models (PRMs) were proposed to provide step-wise rewards that facilitate reinforcement learning and data production during training and guide LLMs toward correct steps during inference, thereby improving reasoning accuracy. However, existing benchmarks of PRMs are text-based and focus on error detection, neglecting other scenarios like reasoning search. To address this gap, we introduce MPBench, a comprehensive, multi-task, multimodal benchmark designed to systematically assess the effectiveness of PRMs in diverse scenarios. MPBench employs three evaluation paradigms, each targeting a specific role of PRMs in the reasoning process: (1) Step Correctness, which assesses the correctness of each intermediate reasoning step; (2) Answer Aggregation, which aggregates multiple solutions and selects the best one; and (3) Reasoning Process Search, which guides the search for optimal reasoning steps during inference. Through these paradigms, MPBench makes comprehensive evaluations and provides insights into the development of multimodal PRMs.

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