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Learning the optimized solution as a function of environmental parameters is effective in solving numerical optimization in real time for time-sensitive applications. Existing works of learning to optimize train deep neural networks (DNN)…

机器学习 · 计算机科学 2019-05-28 Chengjian Sun , Chenyang Yang

We introduce Equivariant Neural Field Expectation Maximization (EFEM), a simple, effective, and robust geometric algorithm that can segment objects in 3D scenes without annotations or training on scenes. We achieve such unsupervised…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Jiahui Lei , Congyue Deng , Karl Schmeckpeper , Leonidas Guibas , Kostas Daniilidis

Neural net classifiers trained on data with annotated class labels can also capture apparent visual similarity among categories without being directed to do so. We study whether this observation can be extended beyond the conventional…

计算机视觉与模式识别 · 计算机科学 2018-05-08 Zhirong Wu , Yuanjun Xiong , Stella Yu , Dahua Lin

Imaging is a standard example of an inverse problem, where the task of reconstructing a ground truth from a noisy measurement is ill-posed. Recent state-of-the-art approaches for imaging use deep learning, spearheaded by unrolled and…

Universal supervised learning is considered from an information theoretic point of view following the universal prediction approach, see Merhav and Feder (1998). We consider the standard supervised "batch" learning where prediction is done…

信息论 · 计算机科学 2018-12-27 Yaniv Fogel , Meir Feder

We develop a novel transfer learning framework to tackle the challenge of limited training data in image reconstruction problems. The proposed framework consists of two training steps, both of which are formed as bi-level optimizations. In…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Yunmei Chen , Chi Ding , Xiaojing Ye

We introduce a framework for unsupervised learning of structured predictors with overlapping, global features. Each input's latent representation is predicted conditional on the observable data using a feature-rich conditional random field.…

机器学习 · 计算机科学 2014-11-11 Waleed Ammar , Chris Dyer , Noah A. Smith

In recent years there has been a flurry of works on learning Bayesian networks from data. One of the hard problems in this area is how to effectively learn the structure of a belief network from incomplete data- that is, in the presence of…

机器学习 · 计算机科学 2013-02-01 Nir Friedman

Many recent methods for unsupervised or self-supervised representation learning train feature extractors by maximizing an estimate of the mutual information (MI) between different views of the data. This comes with several immediate…

机器学习 · 计算机科学 2020-01-24 Michael Tschannen , Josip Djolonga , Paul K. Rubenstein , Sylvain Gelly , Mario Lucic

This paper presents a model-agnostic ensemble approach for supervised learning. The proposed approach is based on a parametric version of Random Subspace, in which each base model is learned from a feature subset sampled according to a…

机器学习 · 计算机科学 2023-01-23 Vân Anh Huynh-Thu , Pierre Geurts

The convergence of expectation-maximization (EM)-based algorithms typically requires continuity of the likelihood function with respect to all the unknown parameters (optimization variables). The requirement is not met when parameters…

信号处理 · 电气工程与系统科学 2024-04-18 Geethu Joseph

Self-training is a powerful approach to deep learning. The key process is to find a pseudo-label for modeling. However, previous self-training algorithms suffer from the over-confidence issue brought by the hard labels, even some…

计算机视觉与模式识别 · 计算机科学 2024-05-03 Zijia Wang , Wenbin Yang , Zhisong Liu , Zhen Jia

Learning with hidden variables is a central challenge in probabilistic graphical models that has important implications for many real-life problems. The classical approach is using the Expectation Maximization (EM) algorithm. This…

机器学习 · 计算机科学 2012-12-12 Gal Elidan , Nir Friedman

Unsupervised pre-training has been proven as an effective approach to boost various downstream tasks given limited labeled data. Among various methods, contrastive learning learns a discriminative representation by constructing positive and…

图像与视频处理 · 电气工程与系统科学 2022-02-17 Jizong Peng , Ping Wang , Marco Pedersoli , Christian Desrosiers

We present a semi-supervised algorithm for lung cancer screening in which a 3D Convolutional Neural Network (CNN) is trained using the Expectation-Maximization (EM) meta-algorithm. Semi-supervised learning allows a smaller labelled data-set…

机器学习 · 计算机科学 2020-10-06 Sumeet Menon , David Chapman , Phuong Nguyen , Yelena Yesha , Michael Morris , Babak Saboury

In the context of supervised statistical learning, it is typically assumed that the training set comes from the same distribution that draws the test samples. When this is not the case, the behavior of the learned model is unpredictable and…

机器学习 · 计算机科学 2022-05-12 Antonio-Javier Gallego , Jorge Calvo-Zaragoza , Robert B. Fisher

This paper presents a self-supervised framework for training interest point detectors and descriptors suitable for a large number of multiple-view geometry problems in computer vision. As opposed to patch-based neural networks, our…

计算机视觉与模式识别 · 计算机科学 2018-04-20 Daniel DeTone , Tomasz Malisiewicz , Andrew Rabinovich

Consistency training has proven to be an advanced semi-supervised framework and achieved promising results in medical image segmentation tasks through enforcing an invariance of the predictions over different views of the inputs. However,…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Xuanting Hao , Shengbo Gao , Lijie Sheng , Jicong Zhang

Deep Learning (DL) aims at learning the \emph{meaningful representations}. A meaningful representation refers to the one that gives rise to significant performance improvement of associated Machine Learning (ML) tasks by replacing the raw…

神经与进化计算 · 计算机科学 2018-02-27 Yanan Sun , Gary G. Yen , Zhang Yi

Entity Matching (EM) is a core data cleaning task, aiming to identify different mentions of the same real-world entity. Active learning is one way to address the challenge of scarce labeled data in practice, by dynamically collecting the…

数据库 · 计算机科学 2020-03-31 Venkata Vamsikrishna Meduri , Lucian Popa , Prithviraj Sen , Mohamed Sarwat