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Generative Modelling with Tensor Train approximations of Hamilton--Jacobi--Bellman equations
Feb. 26, 2024, 5:43 a.m. | David Sommer, Robert Gruhlke, Max Kirstein, Martin Eigel, Claudia Schillings
cs.LG updates on arXiv.org arxiv.org
Abstract: Sampling from probability densities is a common challenge in fields such as Uncertainty Quantification (UQ) and Generative Modelling (GM). In GM in particular, the use of reverse-time diffusion processes depending on the log-densities of Ornstein-Uhlenbeck forward processes are a popular sampling tool. In Berner et al. [2022] the authors point out that these log-densities can be obtained by solution of a \textit{Hamilton-Jacobi-Bellman} (HJB) equation known from stochastic optimal control. While this HJB equation is usually …
abstract arxiv challenge cs.lg diffusion fields generative hamilton math.st modelling popular probability processes quantification sampling stat.ml stat.th tensor tool train type uncertainty
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