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Ricci curvature and the manifold learning problem

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Consider a sample of $n$ points taken i.i.d from a submanifold $\Sigma$ of Euclidean space. We show that there is a way to estimate the Ricci curvature of $\Sigma$ with… Click to show full abstract

Consider a sample of $n$ points taken i.i.d from a submanifold $\Sigma$ of Euclidean space. We show that there is a way to estimate the Ricci curvature of $\Sigma$ with respect to the induced metric from the sample. Our method is grounded in the notions of Carre du Champ for diffusion semi-groups, the theory of Empirical processes and local Principal Component Analysis.

Keywords: ricci curvature; learning problem; curvature manifold; manifold learning; curvature

Journal Title: Advances in Mathematics
Year Published: 2019

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