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Caifeng Shan

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#small language model Preprint Sep 2026

Probe-VAD: Ordinal Likelihood Probing for Training-Free Video Anomaly Detection

Probe-VAD is proposed, an ordinal binary-probing framework that directly probes severity preferences from a frozen VLM, providing a simple interface for translating frozen VLM visual understanding into continuous, rank-sensitive anomaly scores without task-specific training or caption-based compression.

Jia-Wei Gu, Qi-Lin Zhao, Teng-Kuo Guo et al. · 1 citation
Jul 2026

Global Logic and Local Search: Dual-Stream Multimodal In-Context Learning for Verifiable Industrial Anomaly Detection

This work presents GLLS, a training-free framework for reference-guided multimodal in-context verification that combines a Global&Logic Stream, where SAM 3 extracts partially checkable visual facts, with a Fine-Grained&Actions Stream, where MCTS selects local evidence crops under a fixed budget.

R. Deng, Yundi Hu, Yi-Ming Zhong et al. · 0 citations
Preprint Aug 2026

TD-VAD: Breaking Visual Dependence in Video Anomaly Detection with Text-Driven Learning

This work proposes a novel Text-Driven Video Anomaly Detection (TD-VAD) approach, which utilizes video-like text descriptions with temporal characteristics generated by LLM to train a VAD model, without any reliance on target-domain anomaly data.

Shuang-Qing Zhang, Lei-Lei Ma, Zhao Wang et al. · 2 citations

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