Authors

Qi Hao

Publications 2

Preprint Open access

PermVLA: Factorization Order as a Regularizer for VLA Learning

Yanqiao Chen, Yuhan Rui, Dongsheng Hou et al. · 2026

Vision-language-action (VLA) policies commonly learn action chunks through a fixed left-to-right (LTR) factorization, although the same expert trajectory distribution admits many valid chain-rule factorizations. We identify factorization order as an overlooked regularization choice and introduce causally anchored permu …

Preprint Open access

Is This Evidence Decision-Critical? Learning to Verify Rule-Governed Decisions

Haoyang Zhang, Jianpeng Zhao, Qi Hao et al. · 2026

Rule-based reasoning, as in eligibility checks and contract reviews, requires language models to assess evidence against individual conditions and combine their judgments under explicit rules. Errors in evidence assessment can leave a decision unchanged, but misinterpreting or overlooking decision-critical evidence can …

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