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Shuai-Jun Liu

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#machine learning Preprint Sep 2026

D-JEPA: A Decision-Aligned Latent World Model

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
#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
Preprint Aug 2026

The Gate, Not the Cache: Gate Provenance Bounds the Closed-Loop Reliability of Training-Free VLA Token Skipping

Token skipping is a widely used training-free way to accelerate vision--language--action (VLA) models by bypassing computation for most visual tokens at each control step according to a gate. When the next gate is harvested from the previous accelerated forward, however, the tokens skipped at one step are also the ones...

Qi Luo, Shuaijun Liu, Hao Zhao et al. · 0 citations
Jul 2026

From Triggers to Emotions: A CPM-Grounded Appraisal Multi-Agent for Dynamic Emotional Evolution in Persona-Based Dialogue

CPM-MultiAgent is proposed, a CPM-grounded emotion evolution multi-agent framework for supporting emotional changes in persona-based dialogue that represents a character's emotion as a latent state that is continuously reshaped by dialogue triggers.

Jingyao Cai, Shuaijun Liu, Abdul Rehman et al. · 0 citations

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