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Jianjun Zhang

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#artificial intelligence Preprint Sep 2026

CSWAM: Better Causal Semantic Representations for Out-of-Distribution Generalization in World Action Models

The Causal Semantic World Action Model (CSWAM) is presented, which augments FastWAM with a causal semantic expert built on V-JEPA 2.1, which provides temporally grounded representations of semantic state changes and motion with less dependence on appearance-specific details.

Tian-Bin Liu, Jian Zhu, Taiyi Su et al. · 0 citations
Jul 2026

DSWAM: A Dual-System World Action Foundation Model for Fine-Grained Robot Manipulation

DSWAM is introduced, a Dual-System World Action Foundation Model for fine-grained robot manipulation and built and evaluated under the DeMaVLA real-world deformable manipulation setting with matched robot platform, pretraining data, post-training data, and evaluation criteria.

Jian Zhu, Jianjun Zhang, Taiyi Su et al. · 2 citations
Preprint Jul 2026

Learning 4D Geometric Priors for Inference-Efficient World Action Models

MECo-WAM is proposed, a Multi-Expert Co-Training World Action Model that injects action-relevant 4D geometric priors into video-action representations while preserving the original lightweight inference graph.

Jianjun Zhang, Jian Zhu, Taiyi Su et al. · 5 citations

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