skip to main content


Search for: All records

Award ID contains: 1903226

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. Abstract

    Optimal transport (OT) methods seek a transformation map (or plan) between two probability measures, such that the transformation has the minimum transportation cost. Such a minimum transport cost, with a certain power transform, is called the Wasserstein distance. Recently, OT methods have drawn great attention in statistics, machine learning, and computer science, especially in deep generative neural networks. Despite its broad applications, the estimation of high‐dimensional Wasserstein distances is a well‐known challenging problem owing to the curse‐of‐dimensionality. There are some cutting‐edge projection‐based techniques that tackle high‐dimensional OT problems. Three major approaches of such techniques are introduced, respectively, the slicing approach, the iterative projection approach, and the projection robust OT approach. Open challenges are discussed at the end of the review.

    This article is categorized under:

    Statistical and Graphical Methods of Data Analysis > Dimension Reduction

    Statistical Learning and Exploratory Methods of the Data Sciences > Manifold Learning

     
    more » « less
  2. Free, publicly-accessible full text available January 1, 2025
  3. Free, publicly-accessible full text available March 14, 2024
  4. Free, publicly-accessible full text available March 1, 2024