Both Text and Images Leaked! A Systematic Analysis of Multimodal LLM Data Contamination

• URL: http://arxiv.org/abs/2411.03823v2
• Date: Mon, 17 Feb 2025 18:29:13 GMT
• Title: Both Text and Images Leaked! A Systematic Analysis of Multimodal LLM Data Contamination
• Authors: Dingjie Song, Sicheng Lai, Shunian Chen, Lichao Sun, Benyou Wang,
• Abstract summary: multimodal large language models (MLLMs) have demonstrated superior performance on various multimodal benchmarks.<n>The issue of data contamination during training creates challenges in performance evaluation and comparison.<n>We introduce a multimodal data contamination detection framework, MM-Detect, designed for MLLMs.
• Score: 18.586654412992168
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The rapid progression of multimodal large language models (MLLMs) has demonstrated superior performance on various multimodal benchmarks. However, the issue of data contamination during training creates challenges in performance evaluation and comparison. While numerous methods exist for detecting models' contamination in large language models (LLMs), they are less effective for MLLMs due to their various modalities and multiple training phases. In this study, we introduce a multimodal data contamination detection framework, MM-Detect, designed for MLLMs. Our experimental results indicate that MM-Detect is quite effective and sensitive in identifying varying degrees of contamination, and can highlight significant performance improvements due to the leakage of multimodal benchmark training sets. Furthermore, we explore whether the contamination originates from the base LLMs used by MLLMs or the multimodal training phase, providing new insights into the stages at which contamination may be introduced.

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