Search Results for author: John Harlim

Found 4 papers, 1 papers with code

Stationary Density Estimation of Itô Diffusions Using Deep Learning

no code implementations9 Sep 2021 Yiqi Gu, John Harlim, Senwei Liang, Haizhao Yang

In this paper, we consider the density estimation problem associated with the stationary measure of ergodic It\^o diffusions from a discrete-time series that approximate the solutions of the stochastic differential equations.

Density Estimation regression +2

Solving PDEs on Unknown Manifolds with Machine Learning

1 code implementation12 Jun 2021 Senwei Liang, Shixiao W. Jiang, John Harlim, Haizhao Yang

In a well-posed elliptic PDE setting, when the hypothesis space consists of neural networks with either infinite width or depth, we show that the global minimizer of the empirical loss function is a consistent solution in the limit of large training data.

BIG-bench Machine Learning Learning Theory

Error Bounds of the Invariant Statistics in Machine Learning of Ergodic Itô Diffusions

no code implementations21 May 2021 He Zhang, John Harlim, Xiantao Li

We find that sufficient conditions for such a linear dependence result are through learning algorithms that produce a uniformly Lipschitz and consistent estimator in the hypothesis space that retains certain characteristics of the drift coefficients, such as the usual linear growth condition that guarantees the existence of solutions of the underlying SDEs.

BIG-bench Machine Learning regression

Machine Learning for Prediction with Missing Dynamics

no code implementations13 Oct 2019 John Harlim, Shixiao W. Jiang, Senwei Liang, Haizhao Yang

This article presents a general framework for recovering missing dynamical systems using available data and machine learning techniques.

BIG-bench Machine Learning

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