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Does LeWorldModel Preserve Local Action Geometry?
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action sensitivitymodel evaluationperturbation analysis
2610.31716
Builder Relevance
1d ago60%
Abstract
The paper examines the action sensitivity of the pretrained LeWorldModel in reproducing effects of small action changes.
Reality Card
Core Claim
LeWorldModel's action sensitivity varies significantly across perturbation scales, with a notable reduction in Gram discrepancy when increasing perturbation scale.
Method / Result
Increasing perturbation tenfold reduces median normalized Gram discrepancy by roughly 70% on Reacher and 47% on Cube.
Limitations
LeWM's errors are higher at smaller scales, indicating potential limitations in its performance and reproducibility.
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