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Visual perception tasks often require vast amounts of labelled data, including 3D poses and image space segmentation masks. The process of creating such training data sets can prove difficult or time-intensive to scale up to efficacy for…

机器人学 · 计算机科学 2022-08-03 Xiaotong Chen , Huijie Zhang , Zeren Yu , Stanley Lewis , Odest Chadwicke Jenkins

One of the key criticisms of deep learning is that large amounts of expensive and difficult-to-acquire training data are required in order to train models with high performance and good generalization capabilities. Focusing on the task of…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Jack Langerman , Ziming Qiu , Gábor Sörös , Dávid Sebők , Yao Wang , Howard Huang

This paper presents a new approach to the classical problem of quantifying posterior contraction rates (PCRs) in Bayesian statistics. Our approach relies on Wasserstein distance, and it leads to two main contributions which improve on the…

统计理论 · 数学 2022-05-03 Emanuele Dolera , Stefano Favaro , Edoardo Mainini

Persistence diagrams (PD)s play a central role in topological data analysis, and are used in an ever increasing variety of applications. The comparison of PD data requires computing comparison metrics among large sets of PDs, with metrics…

计算几何 · 计算机科学 2024-02-23 Rolando Kindelan Nuñez , Mircea Petrache , Mauricio Cerda , Nancy Hitschfeld

The complexity of a learning task is increased by transformations in the input space that preserve class identity. Visual object recognition for example is affected by changes in viewpoint, scale, illumination or planar transformations.…

计算机视觉与模式识别 · 计算机科学 2017-03-16 Andrea Tacchetti , Stephen Voinea , Georgios Evangelopoulos

This paper introduces Wasserstein variational inference, a new form of approximate Bayesian inference based on optimal transport theory. Wasserstein variational inference uses a new family of divergences that includes both f-divergences and…

Large amounts of labeled training data are one of the main contributors to the great success that deep models have achieved in the past. Label acquisition for tasks other than benchmarks can pose a challenge due to requirements of both…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Clemens-Alexander Brust , Christoph Käding , Joachim Denzler

Metric learning seeks perceptual embeddings where visually similar instances are close and dissimilar instances are apart, but learned representations can be sub-optimal when the distribution of intra-class samples is diverse and distinct…

机器学习 · 计算机科学 2021-08-30 Elad Levi , Tete Xiao , Xiaolong Wang , Trevor Darrell

With the escalated demand of human-machine interfaces for intelligent systems, development of gaze controlled system have become a necessity. Gaze, being the non-intrusive form of human interaction, is one of the best suited approach.…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Somsukla Maiti , Akshansh Gupta

We propose a new equilibrium enforcing method paired with a loss derived from the Wasserstein distance for training auto-encoder based Generative Adversarial Networks. This method balances the generator and discriminator during training.…

机器学习 · 计算机科学 2017-06-02 David Berthelot , Thomas Schumm , Luke Metz

Learning to rank has recently emerged as an attractive technique to train deep convolutional neural networks for various computer vision tasks. Pairwise ranking, in particular, has been successful in multi-label image classification,…

计算机视觉与模式识别 · 计算机科学 2017-06-02 Yuncheng Li , Yale Song , Jiebo Luo

Few-shot segmentation aims at assigning a category label to each image pixel with few annotated samples. It is a challenging task since the dense prediction can only be achieved under the guidance of latent features defined by sparse…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Kai Zhu , Wei Zhai , Zheng-Jun Zha , Yang Cao

Score matching provides an effective approach to learning flexible unnormalized models, but its scalability is limited by the need to evaluate a second-order derivative. In this paper, we present a scalable approximation to a general family…

机器学习 · 统计学 2020-02-19 Ziyu Wang , Shuyu Cheng , Yueru Li , Jun Zhu , Bo Zhang

Boundary discontinuity and its inconsistency to the final detection metric have been the bottleneck for rotating detection regression loss design. In this paper, we propose a novel regression loss based on Gaussian Wasserstein distance as a…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Xue Yang , Junchi Yan , Qi Ming , Wentao Wang , Xiaopeng Zhang , Qi Tian

Motivated by the 2D class averaging problem in single-particle cryo-electron microscopy (cryo-EM), we present a k-means algorithm based on a rotationally-invariant Wasserstein metric for images. Unlike existing methods that are based on…

计算机视觉与模式识别 · 计算机科学 2021-05-31 Rohan Rao , Amit Moscovich , Amit Singer

We present the development and evaluation of a hand tracking algorithm based on single depth images captured from an overhead perspective for use in the COACH prompting system. We train a random decision forest body part classifier using…

计算机视觉与模式识别 · 计算机科学 2015-03-10 Stephen Czarnuch , Alex Mihailidis

We study a model for adversarial classification based on distributionally robust chance constraints. We show that under Wasserstein ambiguity, the model aims to minimize the conditional value-at-risk of the distance to misclassification,…

机器学习 · 计算机科学 2021-11-05 Nam Ho-Nguyen , Stephen J. Wright

Wasserstein dictionary learning is an unsupervised approach to learning a collection of probability distributions that generate observed distributions as Wasserstein barycentric combinations. Existing methods for Wasserstein dictionary…

机器学习 · 计算机科学 2022-10-24 Marshall Mueller , Shuchin Aeron , James M. Murphy , Abiy Tasissa

The goal of few-shot classification is to classify new categories with few labeled examples within each class. Nowadays, the excellent performance in handling few-shot classification problems is shown by metric-based meta-learning methods.…

计算机视觉与模式识别 · 计算机科学 2021-08-02 Xu Luo , Yuxuan Chen , Liangjian Wen , Lili Pan , Zenglin Xu

Mesh deformation plays a pivotal role in many 3D vision tasks including dynamic simulations, rendering, and reconstruction. However, defining an efficient discrepancy between predicted and target meshes remains an open problem. A prevalent…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Tung Le , Khai Nguyen , Shanlin Sun , Kun Han , Nhat Ho , Xiaohui Xie