Author

Hung-Jen Chen

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Preprint Open access Sep 2026

Inductive Visual Logic for Few-Shot Out-Of-Distribution Adaptation in VLMs

Generative vision-language models (VLMs) such as Qwen-VL and LLaVA achieve strong zero-shot performance on tasks overlapping with their pretraining distribution, yet fail on specialized domains where the required discriminative features were never learned, a regime we term distant out-of-distribution (OOD). Standard ad...

Hung-Jen Chen, Yuek F. Ho, Ting-Yao Huang et al. · 0 citations

#machine learning Preprint Sep 2026

When Instructions Retrieve Trajectories: Diagnosing and Mitigating Generalization Failures in VLA Models

The analysis of the imitation objective shows how narrow conditional action support can leave grounded and instruction-keyed solutions indistinguishable on the demonstrations, and motivates Equivariant Counterfactual Training (ECT), which acts at two levels.

Hung-Jen Chen, Yue-Ling Hou, Yan-Hong Chen et al. · 0 citations