Search Results for author: Yiling Luo

Found 7 papers, 1 papers with code

Improved Rate of First Order Algorithms for Entropic Optimal Transport

no code implementations23 Jan 2023 Yiling Luo, Yiling Xie, Xiaoming Huo

To compare, we prove that the computational complexity of the Stochastic Sinkhorn algorithm is $\widetilde{{O}}({n^2}/{\epsilon^2})$, which is slower than our accelerated primal-dual stochastic mirror algorithm.

Covariance Estimators for the ROOT-SGD Algorithm in Online Learning

no code implementations2 Dec 2022 Yiling Luo, Xiaoming Huo, Yajun Mei

Our second estimator is a Hessian-free estimator that overcomes the aforementioned limitation.

Solving a Special Type of Optimal Transport Problem by a Modified Hungarian Algorithm

no code implementations29 Oct 2022 Yiling Xie, Yiling Luo, Xiaoming Huo

Computing the empirical Wasserstein distance in the independence test requires solving this special type of OT problem, where $m=n^2$.

The Directional Bias Helps Stochastic Gradient Descent to Generalize in Kernel Regression Models

no code implementations29 Apr 2022 Yiling Luo, Xiaoming Huo, Yajun Mei

In addition, the Gradient Descent (GD) with a moderate or small step-size converges along the direction that corresponds to the smallest eigenvalue.

regression

Implicit Regularization Properties of Variance Reduced Stochastic Mirror Descent

no code implementations29 Apr 2022 Yiling Luo, Xiaoming Huo, Yajun Mei

On the other hand, algorithms such as gradient descent and stochastic gradient descent have the implicit regularization property that leads to better performance in terms of the generalization errors.

An Accelerated Stochastic Algorithm for Solving the Optimal Transport Problem

1 code implementation2 Mar 2022 Yiling Xie, Yiling Luo, Xiaoming Huo

A primal-dual accelerated stochastic gradient descent with variance reduction algorithm (PDASGD) is proposed to solve linear-constrained optimization problems.

Directional Bias Helps Stochastic Gradient Descent to Generalize in Nonparametric Model

no code implementations29 Sep 2021 Yiling Luo, Xiaoming Huo, Yajun Mei

This paper studies the Stochastic Gradient Descent (SGD) algorithm in kernel regression.

regression

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