Latent world models predict the consequences of actions, but accurate prediction does not guarantee that latent distance reflects which candidate will execute successfully. We identify a decision-local prediction gap: among the few futures competing for execution, a candidate predicted closer to the goal can produce a...
Shuai-Jun Liu, Cheng-Ju Wu, Qi-Fu Wen et al.· 0 citations
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
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
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