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This paper studies the problem of distribution matching (DM), which is a fundamental machine learning problem seeking to robustly align two probability distributions. Our approach is established on a relaxed formulation, called partial…

机器学习 · 计算机科学 2025-05-27 Zi-Ming Wang , Nan Xue , Ling Lei , Rebecka Jörnsten , Gui-Song Xia

Solving general high-dimensional partial differential equations (PDE) is a long-standing challenge in numerical mathematics. In this paper, we propose a novel approach to solve high-dimensional linear and nonlinear PDEs defined on arbitrary…

数值分析 · 数学 2020-04-22 Yaohua Zang , Gang Bao , Xiaojing Ye , Haomin Zhou

Point set registration is a key component in many computer vision tasks. The goal of point set registration is to assign correspondences between two sets of points and to recover the transformation that maps one point set to the other.…

计算机视觉与模式识别 · 计算机科学 2010-11-09 Andriy Myronenko , Xubo Song

This paper focuses on the Wasserstein distributionally robust mean-lower semi-absolute deviation (DR-MLSAD) model, where the ambiguity set is a Wasserstein ball centered on the empirical distribution of the training sample. This model can…

最优化与控制 · 数学 2024-03-04 Weimi Zhou , Yong-Jin Liu

In this paper, we study a physics-informed algorithm for Wasserstein Generative Adversarial Networks (WGANs) for uncertainty quantification in solutions of partial differential equations. By using groupsort activation functions in…

数值分析 · 数学 2022-08-10 Yihang Gao , Michael K. Ng

Deep neural networks are known to be vulnerable to adversarial attacks (AA). For an image recognition task, this means that a small perturbation of the original can result in the image being misclassified. Design of such attacks as well as…

机器学习 · 计算机科学 2023-06-19 Xingjian Bai , Guangyi He , Yifan Jiang , Jan Obloj

In many domains of computer vision, generative adversarial networks (GANs) have achieved great success, among which the family of Wasserstein GANs (WGANs) is considered to be state-of-the-art due to the theoretical contributions and…

计算机视觉与模式识别 · 计算机科学 2018-09-06 Jiqing Wu , Zhiwu Huang , Janine Thoma , Dinesh Acharya , Luc Van Gool

Non-rigid 3D registration, which deforms a source 3D shape in a non-rigid way to align with a target 3D shape, is a classical problem in computer vision. Such problems can be challenging because of imperfect data (noise, outliers and…

计算机视觉与模式识别 · 计算机科学 2023-02-21 Yuxin Yao , Bailin Deng , Weiwei Xu , Juyong Zhang

Wasserstein-GANs have been introduced to address the deficiencies of generative adversarial networks (GANs) regarding the problems of vanishing gradients and mode collapse during the training, leading to improved convergence behaviour and…

机器学习 · 计算机科学 2019-12-17 Jan Müller , Reinhard Klein , Michael Weinmann

Empirical risk minimization (ERM) is not robust to changes in the distribution of data. When the distribution of test data is different from that of training data, the problem is known as out-of-distribution generalization. Recently, two…

计算机视觉与模式识别 · 计算机科学 2025-01-16 Shijian Xu

In many real-world applications of Machine Learning it is of paramount importance not only to provide accurate predictions, but also to ensure certain levels of robustness. Adversarial Training is a training procedure aiming at providing…

机器学习 · 计算机科学 2019-10-09 Matteo Terzi , Gian Antonio Susto , Pratik Chaudhari

Due to the curse of dimensionality, solving high dimensional parabolic partial differential equations (PDEs) has been a challenging problem for decades. Recently, a weak adversarial network (WAN) proposed in (Y.Zang et al., 2020) offered a…

数值分析 · 数学 2022-05-18 Paul Valsecchi Oliva , Yue Wu , Cuiyu He , Hao Ni

Generative Adversarial Networks (GANs) are one of the most practical methods for learning data distributions. A popular GAN formulation is based on the use of Wasserstein distance as a metric between probability distributions.…

机器学习 · 计算机科学 2018-05-23 Maziar Sanjabi , Jimmy Ba , Meisam Razaviyayn , Jason D. Lee

This paper delves into the application of adversarial domain adaptation (ADA) for enhancing credit risk assessment in financial institutions. It addresses two critical challenges: the cold start problem, where historical lending data is…

机器学习 · 计算机科学 2024-09-30 Mohan Jiang , Jiating Lin , Hongju Ouyang , Jingming Pan , Siyuan Han , Bingyao Liu

Deep point cloud registration methods face challenges to partial overlaps and rely on labeled data. To address these issues, we propose UDPReg, an unsupervised deep probabilistic registration framework for point clouds with partial…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Guofeng Mei , Hao Tang , Xiaoshui Huang , Weijie Wang , Juan Liu , Jian Zhang , Luc Van Gool , Qiang Wu

Rigid registration of point clouds with partial overlaps is a longstanding problem usually solved in two steps: (a) finding correspondences between the point clouds; (b) filtering these correspondences to keep only the most reliable ones to…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Anh-Quan Cao , Gilles Puy , Alexandre Boulch , Renaud Marlet

The $2$-Wasserstein distance is sensitive to minor geometric differences between distributions, making it a very powerful dissimilarity metric. However, due to this sensitivity, a small outlier mass can also cause a significant increase in…

机器学习 · 计算机科学 2024-06-04 Sharath Raghvendra , Pouyan Shirzadian , Kaiyi Zhang

In this paper, we provide a theoretical analysis of the recently introduced weakly adversarial networks (WAN) method, used to approximate partial differential equations in high dimensions. We address the existence and stability of the…

数值分析 · 数学 2024-01-31 Silvia Bertoluzza , Erik Burman , Cuiyu He

Probabilistic methods for point set registration have demonstrated competitive results in recent years. These techniques estimate a probability distribution model of the point clouds. While such a representation has shown promise, it is…

计算机视觉与模式识别 · 计算机科学 2018-10-24 Felix Järemo Lawin , Martin Danelljan , Fahad Shahbaz Khan , Per-Erik Forssén , Michael Felsberg

Design of adversarial attacks for deep neural networks, as well as methods of adversarial training against them, are subject of intense research. In this paper, we propose methods to train against distributional attack threats, extending…

机器学习 · 计算机科学 2025-02-14 Xingjian Bai , Guangyi He , Yifan Jiang , Jan Obloj
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