Search Results for author: Xianyang Zhang

Found 4 papers, 0 papers with code

Soft-constrained Schrodinger Bridge: a Stochastic Control Approach

no code implementations4 Mar 2024 Jhanvi Garg, Xianyang Zhang, Quan Zhou

Schr\"{o}dinger bridge can be viewed as a continuous-time stochastic control problem where the goal is to find an optimally controlled diffusion process whose terminal distribution coincides with a pre-specified target distribution.

Time Series

Sequential Gradient Descent and Quasi-Newton's Method for Change-Point Analysis

no code implementations21 Oct 2022 Xianyang Zhang, Trisha Dawn

One common approach to detecting change-points is minimizing a cost function over possible numbers and locations of change-points.

Change Point Detection

Kernel Two-Sample Tests in High Dimension: Interplay Between Moment Discrepancy and Dimension-and-Sample Orders

no code implementations31 Dec 2021 Jian Yan, Xianyang Zhang

Motivated by the increasing use of kernel-based metrics for high-dimensional and large-scale data, we study the asymptotic behavior of kernel two-sample tests when the dimension and sample sizes both diverge to infinity.

A New Framework for Distance and Kernel-based Metrics in High Dimensions

no code implementations30 Sep 2019 Shubhadeep Chakraborty, Xianyang Zhang

The paper presents new metrics to quantify and test for (i) the equality of distributions and (ii) the independence between two high-dimensional random vectors.

Two-sample testing

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