Author

Reza Langari

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Preprint Sep 2026

CorrRisk-WM: Corridor-Conditioned Risk World Modeling for Safety-Critical Trajectory Planning

CorrRisk-WM, a planning-oriented partial world model coupling environment evolution with supervised intrusion and near-miss prediction over bounded candidate-trajectory corridors, supports coupling environment evolution with candidate-conditioned geometric reasoning for risk prediction and safety-oriented candidate sel...

Ting-Yu Guo, Reza Langari · 0 citations

#machine learning Preprint Sep 2026

ActionSplice: In-Flight Action Editing for Interactive World Models

This work introduces \emph{ActionSplice], which edits the interrupted state through Counterfactual State Transport (CST), a lightweight corrector that moves the interrupted solver state toward the matched counterfactual solver state induced by the revised action at the same solver step.

P. Taghavi, Ting-Yu Guo, Jonas Lossner et al. · 0 citations

#artificial intelligence Preprint Aug 2026

Partition the Support, Reconstruct the Residual: Training-Free Sparse Attention for Video Generation and World Models

This work introduces SparsePR, which combines Response-Coupled Partitioning with Probe-Fitted Residual Reconstruction and consistently reduces attention-reconstruction error across four heterogeneous video generation and world models.

P. Taghavi, Reza Langari, Gaurav Pandey · 1 citation