Author

Wen-Jian Luo

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Jul 2026

When Model Priors Conflict with Visual Evidence: Mitigating Commonsense-Driven Hallucinations by Selective Prior Calibration

This work proposes Selective Prior Calibration (SPC), which subtracts candidate-level prior-preference estimates from image-conditioned scores with an instance-dependent strength and revises the original prediction only when the resulting score pattern strongly supports an alternative.

Kesheng Chen, Yamin Hu, Wenjian Luo · arXiv.org · 0 citations

Jul 2026

SentAttack: A Sentence-Level Black-Box Adversarial Attack Method for Dense Retrieval Models

SentAttack is a sentence-level black-box adversarial attack method for DR models that outperforms existing adversarial attacks on DR models, with especially strong performance on low-ranked target documents.

Luping Wei, Ya-Min Hu, Sihan Shang et al. · arXiv.org · 0 citations