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We consider a matrix completion problem that exploits social or item similarity graphs as side information. We develop a universal, parameter-free, and computationally efficient algorithm that starts with hierarchical graph clustering and…

机器学习 · 统计学 2022-01-06 Adel Elmahdy , Junhyung Ahn , Changho Suh , Soheil Mohajer

This paper studies the subspace clustering problem in which data points collected from high-dimensional ambient space lie in a union of linear subspaces. Subspace clustering becomes challenging when the dimension of intersection between…

机器学习 · 计算机科学 2021-08-17 Weiwei Li , Mostafa Rahmani , Ping Li

This paper presents a method for jointly estimating the state, input, and parameters of linear systems in an online fashion. The method is specially designed for measurements that are corrupted with non-Gaussian noise or outliers, which are…

系统与控制 · 电气工程与系统科学 2022-04-13 Jean-Sébastien Brouillon , Keith Moffat , Florian Dörfler , Giancarlo Ferrari-Trecate

Matrix completion is a modern missing data problem where both the missing structure and the underlying parameter are high dimensional. Although missing structure is a key component to any missing data problems, existing matrix completion…

机器学习 · 统计学 2020-03-23 Xiaojun Mao , Raymond K. W. Wong , Song Xi Chen

We present new algorithms for learning Bayesian networks from data with missing values using a data augmentation approach. An exact Bayesian network learning algorithm is obtained by recasting the problem into a standard Bayesian network…

人工智能 · 计算机科学 2016-12-06 Tameem Adel , Cassio P. de Campos

Multimodal data plays a critical role in web-based recommendation systems, where information from diverse modalities such as vision and text enhances representation learning. However, real-world multimodal datasets often suffer from…

信息检索 · 计算机科学 2026-05-04 Yuan Li , Jun Hu , Jiaxin Jiang , Bryan Hooi , Bingsheng He

This paper introduces SuperGlue, a neural network that matches two sets of local features by jointly finding correspondences and rejecting non-matchable points. Assignments are estimated by solving a differentiable optimal transport…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Paul-Edouard Sarlin , Daniel DeTone , Tomasz Malisiewicz , Andrew Rabinovich

We propose a novel algorithm for unsupervised extraction of piecewise planar models from depth-data. Among other applications, such models are a good way of enabling autonomous agents (robots, cars, drones, etc.) to effectively perceive…

计算机视觉与模式识别 · 计算机科学 2022-09-29 Richard T. Marriott , Alexander Paschevich , Radu Horaud

We describe the Greedy Sparse Subspace Clustering (GSSC) algorithm providing an efficient method for clustering data belonging to a few low-dimensional linear or affine subspaces from incomplete corrupted and noisy data. We provide…

数值分析 · 数学 2013-04-17 Alexander Petukhov , Inna Kozlov

Online updating of the object model via samples from historical frames is of great importance for accurate visual object tracking. Recent works mainly focus on constructing effective and efficient updating methods while neglecting the…

计算机视觉与模式识别 · 计算机科学 2021-05-04 Ziyi Cheng , Xuhong Ren , Felix Juefei-Xu , Wanli Xue , Qing Guo , Lei Ma , Jianjun Zhao

Handling imbalanced datasets is a challenging problem that if not treated correctly results in reduced classification performance. Imbalanced datasets are commonly handled using minority oversampling, whereas the SMOTE algorithm is a…

机器学习 · 计算机科学 2016-07-25 Xi Zhang , Di Ma , Lin Gan , Shanshan Jiang , Gady Agam

Truss was proposed to study social network data represented by graphs. A k-truss of a graph is a cohesive subgraph, in which each edge is contained in at least k-2 triangles within the subgraph. While truss has been demonstrated as superior…

数据库 · 计算机科学 2014-02-13 Rui Zhou , Chengfei Liu , Jeffrey Xu Yu , Weifa Liang , Yanchun Zhang

In this work, we present a novel and practical approach to address one of the longstanding problems in computer vision: 2D and 3D affine invariant feature matching. Our Grassmannian Graph (GrassGraph) framework employs a two stage procedure…

计算机视觉与模式识别 · 计算机科学 2016-02-05 Mark Moyou , John Corring , Adrian Peter , Anand Rangarajan

This material introduces the D-Subspace algorithm derived on the basis of the centralized algorithm [1], which originally addresses parameter estimation problems under a subspace constraint.

信号处理 · 电气工程与系统科学 2024-11-19 Yitong Chen , Danqi Jin , Jie Chen , Cedric Richard

We present a novel approach which is able to explore the configuration of grouped convolutions within neural networks. Group-size Series (GroSS) decomposition is a mathematical formulation of tensor factorisation into a series of…

机器学习 · 计算机科学 2020-07-17 Henry Howard-Jenkins , Yiwen Li , Victor A. Prisacariu

CUR matrix decomposition computes the low rank approximation of a given matrix by using the actual rows and columns of the matrix. It has been a very useful tool for handling large matrices. One limitation with the existing algorithms for…

机器学习 · 计算机科学 2014-11-05 Miao Xu , Rong Jin , Zhi-Hua Zhou

State of the art mapping algorithms can produce high-quality maps. However, they are still vulnerable to clutter and outliers which can affect map quality and in consequence hinder the performance of a robot, and further map processing for…

机器人学 · 计算机科学 2021-05-31 Tomasz Piotr Kucner , Matteo Luperto , Stephanie Lowry , Martin Magnusson , Achim J. Lilienthal

Predicting the evolution of spatiotemporal physical systems from sparse and scattered observational data poses a significant challenge in various scientific domains. Traditional methods rely on dense grid-structured data, limiting their…

机器学习 · 计算机科学 2024-03-29 Andrzej Dulny , Paul Heinisch , Andreas Hotho , Anna Krause

We present the marginal unbiased score expansion (MUSE) method, an algorithm for generic high-dimensional hierarchical Bayesian inference. MUSE performs approximate marginalization over arbitrary non-Gaussian latent parameter spaces,…

宇宙学与河外天体物理 · 物理学 2022-06-01 Marius Millea , Uros Seljak

Adaptive learning is necessary for non-stationary environments where the learning machine needs to forget past data distribution. Efficient algorithms require a compact model update to not grow in computational burden with the incoming data…

机器学习 · 计算机科学 2023-07-11 Vanessa Gómez-Verdejo , Emilio Parrado-Hernández , Manel Martínez-Ramón