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Adjoint Sensitivities of Chaotic Flows without Adjoint Solvers: A Data-Driven Approach
April 19, 2024, 4:42 a.m. | Defne E. Ozan, Luca Magri
cs.LG updates on arXiv.org arxiv.org
Abstract: In one calculation, adjoint sensitivity analysis provides the gradient of a quantity of interest with respect to all system's parameters. Conventionally, adjoint solvers need to be implemented by differentiating computational models, which can be a cumbersome task and is code-specific. To propose an adjoint solver that is not code-specific, we develop a data-driven strategy. We demonstrate its application on the computation of gradients of long-time averages of chaotic flows. First, we deploy a parameter-aware echo …
abstract analysis arxiv code computational cs.lg data data-driven gradient nlin.cd parameters sensitivity type
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