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Chao Shen

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#artificial intelligence Preprint Oct 2026

Answer It or Not? Towards Prompt-Adapted Adversarial Images on Vision Language Models

With the advancement in language modeling, research on adversarial images has recently shifted from image classifiers to vision-language models (VLMs). Despite the new, text-prompt-driven nature of VLMs, we find that existing VLM adversaries have largely overlooked the dynamics of text prompts. In a typical use case, a...

Shun-Yuan Bai, Yu-Chen Ren, Le Yang et al. · 0 citations
Preprint Sep 2026

Detecting Object Hallucinations in Large Vision-Language Models via Cross-Modal Attention Drifts and Mask-Based Verification

CADMP is proposed, a lightweight object hallucination detection framework that combines adjacent-layer cross-modal attention drift with prediction sensitivity to targeted visual masking, and achieves consistently competitive detection performance.

Xu Wen, Boxu Chen, Le Yang et al. · 0 citations
Jul 2026

Evaluation-Verification Reward for Consistent Multi-Reference Image Editing

A Multi-dimensional Evaluation-Verification Reward (EVR) decomposes evaluation into distinct visual criteria; for each criterion, an MLLM Evaluator generates multiple candidate hypotheses, and a Verifier grounds each claim in concrete visual evidence to accept or reject it, producing reliable and fine-grained reward si...

Ying-Mao Miao, Peng-Fei Zhang, Xiaochen Lv et al. · 0 citations
Open access Jul 2026

On Success and Simplicity: A Second Look at Transferable Vision–Language Attack Pipeline

This paper identifies three previously overlooked issues caused by inappropriate cross-modal interactions and excessive operations in the Simple Vision-Language Attack (SimVLA) pipeline, and proposes the SimVLA, which observably improves transferability and efficiency.

Yuchen Ren, Zhengyu Zhao, Chenhao Lin et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Detecting Backdoors in Object Detection via Pre-NMS Prediction Distribution Shift

DistScan is presented, a backdoor detection framework based on a simple but previously unexploited observation: backdoor injection systematically shifts a model's pre-NMS prediction class distribution away from its training class frequencies, even on clean inputs without any trigger present.

Long-Tian Wang, Zheng-Yu Zhao, Chen-Hao Lin et al. · 0 citations

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