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tLaSDI: Thermodynamics-informed latent space dynamics identification
March 12, 2024, 4:41 a.m. | Jun Sur Richard Park, Siu Wun Cheung, Youngsoo Choi, Yeonjong Shin
cs.LG updates on arXiv.org arxiv.org
Abstract: We propose a data-driven latent space dynamics identification method (tLaSDI) that embeds the first and second principles of thermodynamics. The latent variables are learned through an autoencoder as a nonlinear dimension reduction model. The dynamics of the latent variables are constructed by a neural network-based model that preserves certain structures to respect the thermodynamic laws through the GENERIC formalism. An abstract error estimate of the approximation is established, which provides a new loss formulation involving …
abstract arxiv autoencoder cs.lg data data-driven dynamics identification math.ds network neural network space through type variables
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