Author

Jun Fan

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Preprint Aug 2026

Diagnosing Dense Same-Class Attribute Misbinding in Large Vision-Language Models

Large vision-language models can recognize the objects and attributes in a crowded scene yet assign an attribute to the wrong same-class instance. Generic visual-question-answering accuracy marks the response as wrong, while object-hallucination metrics may regard both the object and attribute as image-supported; neith...

Yuanzhi Xu, Qian Gao, Jun Fan et al. · 1 citation

Preprint Sep 2026

Semantic-Spatial Agreement Verification for Mitigating Object Hallucination in Multimodal Large Language Models

Multimodal large language models generate natural-language responses from visual inputs, yet may mention objects absent from an image. In medication assistance, accessible perception, and environmental decision-making, such hallucinations can create real-world safety risks. We propose Semantic-Spatial Agreement Verific...

Zi-Heng Ren, Qian Gao, Jun Fan et al. · 0 citations

Preprint Aug 2026

Dual-Stream Cross-Anchor Correction Grounding Long-Form Captions and the Domain Limits of Object-Level Anchors

This paper proposes Dual-Stream Cross-Anchor Correction (DSCC), which injects object-level visual anchors into the language model itself during fine-tuning and reaches the long-caption, low-hallucination region.

LingKai Bu, Qian Gao, Jun Fan et al. · 0 citations