arXiv Machine Learning By Eric Aislan Antonelo

A Study of Conditional Diffusion Models for Open-Loop Control under Dry Friction and Stiction

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The paper introduces Action Diffusion, a conditional diffusion model that generates action sequences for a point-mass system affected by dry friction and stiction. Using a compact 1D U‑Net, the model produces bounded control sequences conditioned on initial and target states, outperforming uniform random shooting, structured random shooting, and the Cross‑Entropy Method in reducing terminal error and stuck steps, especially with few samples. The results demonstrate that conditional diffusion can produce temporally coherent controls that effectively overcome stiction by recombining structured primitives from the training prior.

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