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Author

Pinlong Zhao

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Preprint Aug 2026

When Images Look Right and Retrieve Wrong: Coverage-Guided Cross-Scale Re-Indexing for Knowledge-Faithful Generative Perception

CERES is proposed, a closed-loop multimodal indexing framework that builds a three-level semantic pyramid, mines implicit concepts via a co-occurrence-aware router, performs scale-routed cross-attention into a lightweight U-Net generator, and verifies coverage by re-indexing the generated image with the same frozen VLM.

Guangyuan Dong, Chuang Liu, Hao-Yu Wang et al. · 1 citation
Conference Open access 2026

What Tokens Truly Matter? The Logit Conflation Problem in LLM Sampling

This work identifies the Logit Conflation Problem, where a to-ken’s logit aggregates prompt-independent factors, including linguistic fluency and parametric associations, with prompt-relevance, and proposes SEAL-Sampling to isolate this component through attention-weighted attribution.

Pinlong Zhao, Huijun Tang, Pengfei Jiao et al. · 0 citations
Conference Open access 2026

B-APO: Bias-Targeted Adversarial Preference Optimization for Debiasing Multimodal Large Language Models

This work proposes B-APO (Bias-Targeted Adversarial Preference Optimization), which casts debiasing as a bias-targeted min-max game: it generates hard negatives by applying small adversarial perturbations in the latent space to maximally induce language-vision-prior reliance, and then performs preference alignment to enlarge the margin between clean and adversarial responses.

Pinlong Zhao, Zike Ding, Zengshu Ye et al. · 0 citations

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