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Optimal transport (OT) is known to be sensitive against outliers because of its marginal constraints. Outlier robust OT variants have been proposed based on the definition that outliers are samples which are expensive to move. In this…

机器学习 · 统计学 2022-06-27 Kilian Fatras

We present a novel hierarchical framework for optimal transport (OT) using string diagrams, namely string diagrams of optimal transports. This framework reduces complex hierarchical OT problems to standard OT problems, allowing efficient…

人工智能 · 计算机科学 2025-01-28 Kazuki Watanabe , Noboru Isobe

In order to reduce domain discrepancy to improve the performance of cross-domain spoken language identification (SLID) system, as an unsupervised domain adaptation (UDA) method, we have proposed a joint distribution alignment (JDA) model…

音频与语音处理 · 电气工程与系统科学 2022-04-01 Xugang Lu , Peng Shen , Yu Tsao , Hisashi Kawai

Optimal Transport (OT) has established itself as a robust framework for quantifying differences between distributions, with applications that span fields such as machine learning, data science, and computer vision. This paper offers a…

数据结构与算法 · 计算机科学 2025-01-14 Sina Moradi

In many machine learning applications, it is necessary to meaningfully aggregate, through alignment, different but related datasets. Optimal transport (OT)-based approaches pose alignment as a divergence minimization problem: the aim is to…

机器学习 · 统计学 2019-11-05 John Lee , Max Dabagia , Eva L. Dyer , Christopher J. Rozell

We investigate the optimal transport (OT) problem over networks, wherein supply and demand are conceptualized as temporal marginals governing departure rates of particles from source nodes and arrival rates at sink nodes. This setting…

最优化与控制 · 数学 2026-02-17 Anqi Dong , Karl H. Johansson , Johan Karlsson

Label assignment has been widely studied in general object detection because of its great impact on detectors' performance. However, none of these works focus on label assignment in dense pedestrian detection. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-03-15 Zheng Ge , Jianfeng Wang , Xin Huang , Songtao Liu , Osamu Yoshie

Optimal transport (OT) theory describes general principles to define and select, among many possible choices, the most efficient way to map a probability measure onto another. That theory has been mostly used to estimate, given a pair of…

机器学习 · 计算机科学 2023-04-03 Charlotte Bunne , Andreas Krause , Marco Cuturi

Optimal transport (OT) naturally arises in a wide range of machine learning applications but may often become the computational bottleneck. Recently, one line of works propose to solve OT approximately by searching the \emph{transport plan}…

机器学习 · 计算机科学 2021-11-15 Weijie Liu , Chao Zhang , Nenggan Zheng , Hui Qian

Optimal transport (OT) based data analysis is often faced with the issue that the underlying cost function is (partially) unknown. This paper is concerned with the derivation of distributional limits for the empirical OT value when the cost…

The optimal transport (OT) problem is a classical optimization problem having the form of linear programming. Machine learning applications put forward new computational challenges in its solution. In particular, the OT problem defines a…

最优化与控制 · 数学 2022-10-25 Nazarii Tupitsa , Pavel Dvurechensky , Darina Dvinskikh , Alexander Gasnikov

Optimal Transport (OT) has fueled machine learning (ML) across many domains. When paired data measurements $(\boldsymbol{\mu}, \boldsymbol{\nu})$ are coupled to covariates, a challenging conditional distribution learning setting arises.…

This article introduces a new notion of optimal transport (OT) between tensor fields, which are measures whose values are positive semidefinite (PSD) matrices. This "quantum" formulation of OT (Q-OT) corresponds to a relaxed version of the…

图形学 · 计算机科学 2017-07-25 Gabriel Peyré , Lenaïc Chizat , François-Xavier Vialard , Justin Solomon

Self-training is a standard approach to semi-supervised learning where the learner's own predictions on unlabeled data are used as supervision during training. In this paper, we reinterpret this label assignment process as an optimal…

机器学习 · 计算机科学 2021-06-15 Kai Sheng Tai , Peter Bailis , Gregory Valiant

We investigate the semi-discrete Optimal Transport (OT) problem, where a continuous source measure $\mu$ is transported to a discrete target measure $\nu$, with particular attention to the OT map approximation. In this setting, Stochastic…

Entropic optimal transport (OT) and the Sinkhorn algorithm have made it practical for machine learning practitioners to perform the fundamental task of calculating transport distance between statistical distributions. In this work, we focus…

An Optimal Transport (OT)-based decentralized collaborative multi-robot exploration strategy is proposed in this paper. This method is to achieve an efficient exploration with a predefined priority in the given domain. In this context, the…

系统与控制 · 电气工程与系统科学 2020-10-01 Rabiul Hasan Kabir , Kooktae Lee

The cost of labeling data often limits the performance of machine learning systems. In multi-task learning, related tasks provide information to each other and improve overall performance, but the label cost can vary among tasks. How should…

机器学习 · 计算机科学 2023-08-25 Ximeng Sun , Kihyuk Sohn , Kate Saenko , Clayton Mellina , Xiao Bian

This paper considers the decentralized (discrete) optimal transport (D-OT) problem. In this setting, a network of agents seeks to design a transportation plan jointly, where the cost function is the sum of privately held costs for each…

最优化与控制 · 数学 2024-09-23 Ivan Lau , Shiqian Ma , César A. Uribe

Optimal transport (OT) has an important role in transforming data distributions in a manner which engenders fairness. Typically, the OT operators are learnt from the unfair attribute-labelled data, and then used for their repair. Two…

机器学习 · 计算机科学 2026-03-11 Abigail Langbridge , Anthony Quinn , Robert Shorten