Papers › Ricci flow-guided autoencoders in learning time-dependent dynamics
Ricci flow-guided autoencoders in learning time-dependent dynamics
Andrew Gracyk
We present a manifold-based autoencoder method for learning dynamics in time, notably partial differential equations (PDEs), in which the manifold latent space evolves according to Ricci flow. This can be accomplished by simulating Ricci flow in a physics-informed setting, and manifold quantities can be matched so that Ricci flow is empirically achieved. With our method, the manifold is discerned through the training procedure, while the latent evolution due to Ricci flow induces a more accommodating representation over static methods. We present our method on a range of experiments consisting of PDE data that encompasses desirable characteristics such as periodicity and randomness. By incorporating latent dynamics, we sustain a manifold latent representation for all values in the ambient PDE time interval. Furthermore, the dynamical manifold latent space facilitates qualities such as learning for out-of-distribution data, and robustness. We showcase our method by demonstrating these features.
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