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Author

Xingwei Chen

3 papers indexed here

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#machine learning Preprint Sep 2026

Beyond Appearance Shifts: Task-Semantic Action Calibration for VLA Models

Vision-language-action (VLA) models have achieved strong performance in embodied manipulation, but still lack a clear mechanism to balance behavioral stability with task-semantic sensitivity. We identify two complementary failure modes. Under task-preserving changes, where task semantics remain unchanged but scene appe...

Shuai-Jun Liu, Fei-Yang You, Cheng-Ju Wu et al. · 0 citations
Preprint Aug 2026

When Replanning Becomes the Bottleneck: Budgeted Replanning for Embodied Agents

BRACE is presented, a controller that formulates replanning as a budgeted control loop by deciding whether to replan, selecting a replanning mode, and allocating an explicit token budget and latency service-level objective (SLO) while accounting for optional efficiency modules.

Shuai-Jun Liu, Fei-Yang You, Xing-Wei Chen et al. · 1 citation
Conference Jul 2026

A Large-Language-Model-Oriented Dual-Channel Agent Framework for Intelligent Generation of Simulation Scenarios

Constructing simulation scenarios manually is time-consuming and often depends on platform-specific modeling experience. Existing large-language-model (LLM) methods are promising for interpreting operational documents, but they still struggle with long-document parsing, incomplete platform interfaces, auditable task ex...

Lei Wang, Zhiqiang Fan, Yikang Song et al. · 0 citations

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