SHALE: A Scalable Benchmark for Fine-grained Hallucination Evaluation in LVLMs

• URL: http://arxiv.org/abs/2508.09584v2
• Date: Thu, 14 Aug 2025 11:57:08 GMT
• Title: SHALE: A Scalable Benchmark for Fine-grained Hallucination Evaluation in LVLMs
• Authors: Bei Yan, Zhiyuan Chen, Yuecong Min, Jie Zhang, Jiahao Wang, Xiaozhen Wang, Shiguang Shan,
• Abstract summary: Large Vision-Language Models (LVLMs) still suffer from hallucinations, i.e., generating content inconsistent with input or established world knowledge.<n>We propose an automated data construction pipeline that produces scalable, controllable, and diverse evaluation data.<n>We construct SHALE, a benchmark designed to assess both faithfulness and factuality hallucinations.
• Score: 52.03164192840023
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Despite rapid advances, Large Vision-Language Models (LVLMs) still suffer from hallucinations, i.e., generating content inconsistent with input or established world knowledge, which correspond to faithfulness and factuality hallucinations, respectively. Prior studies primarily evaluate faithfulness hallucination at a rather coarse level (e.g., object-level) and lack fine-grained analysis. Additionally, existing benchmarks often rely on costly manual curation or reused public datasets, raising concerns about scalability and data leakage. To address these limitations, we propose an automated data construction pipeline that produces scalable, controllable, and diverse evaluation data. We also design a hierarchical hallucination induction framework with input perturbations to simulate realistic noisy scenarios. Integrating these designs, we construct SHALE, a Scalable HALlucination Evaluation benchmark designed to assess both faithfulness and factuality hallucinations via a fine-grained hallucination categorization scheme. SHALE comprises over 30K image-instruction pairs spanning 12 representative visual perception aspects for faithfulness and 6 knowledge domains for factuality, considering both clean and noisy scenarios. Extensive experiments on over 20 mainstream LVLMs reveal significant factuality hallucinations and high sensitivity to semantic perturbations.

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