Results 11 to 20 of about 262,580 (281)

Structure-Constrained Symmetric Low-Rank Representation Algorithm for Subspace Clustering [PDF]

open access: yesJisuanji gongcheng, 2021
The potential subspace structure of high-dimensional data can be obtained by using subspace clustering,but the existing methods can not reveal the characteristics of global low-rank structure and local sparse structure of data at the same time,which ...
TAO Yang, BAO Linglang, HU Hao
doaj   +1 more source

Efficient Malware Analysis Using Subspace-Based Methods on Representative Image Patterns

open access: yesIEEE Access, 2023
In this paper, we propose a new framework for classifying and visualizing malware files using subspace-based methods. The rise of advanced malware poses a significant threat to internet security, increasing the pressure on traditional cybersecurity ...
Djafer Yahia M Benchadi   +2 more
doaj   +1 more source

Subspace Methods for Nonlinear Optimization

open access: yesCSIAM Transactions on Applied Mathematics, 2021
Summary: Subspace techniques such as Krylov subspace methods have been well known and extensively used in numerical linear algebra. They are also ubiquitous and becoming indispensable tools in nonlinear optimization due to their ability to handle large scale problems. There are generally two types of principals: i) the decision variable is updated in a
Liu, Xin, Wen, Zaiwen, Yuan, Ya-Xiang
openaire   +3 more sources

Subspace Methods for Joint Sparse Recovery [PDF]

open access: yes, 2011
We propose robust and efficient algorithms for the joint sparse recovery problem in compressed sensing, which simultaneously recover the supports of jointly sparse signals from their multiple measurement vectors obtained through a common sensing matrix ...
Bresler, Yoram   +2 more
core   +1 more source

Stochastic subspace correction methods and fault tolerance [PDF]

open access: yes, 2018
We present convergence results in expectation for stochastic subspace correction schemes and their accelerated versions to solve symmetric positive-definite variational problems, and discuss their potential for achieving fault tolerance in an unreliable ...
Griebel, Michael, Oswald, Peter
core   +2 more sources

Pipelined, Flexible Krylov Subspace Methods [PDF]

open access: yesSIAM Journal on Scientific Computing, 2016
We present variants of the Conjugate Gradient (CG), Conjugate Residual (CR), and Generalized Minimal Residual (GMRES) methods which are both pipelined and flexible. These allow computation of inner products and norms to be overlapped with operator and nonlinear or nondeterministic preconditioner application.The methods are hence aimed at hiding network
Sanan, P., Schnepp, S. M., May, D. A.
openaire   +2 more sources

Blind channel equalization using weighted subspace methods [PDF]

open access: yes, 1999
This paper addresses the problems of blind channel estimation and symbol detection with second order statistics methods from the received data. It can be shown that this problem is similar to direction of arrival (DOA) estimation, where many solutions ...
Cabrera-Bean, Margarita   +1 more
core   +1 more source

Hyperspectral Band Selection via Optimal Combination Strategy

open access: yesRemote Sensing, 2022
Band selection is one of the main methods of reducing the number of dimensions in a hyperspectral image. Recently, various methods have been proposed to address this issue.
Shuying Li   +3 more
doaj   +1 more source

Anomaly Community Detection Method via Subspace Combining Node Attribute and Structure Information [PDF]

open access: yesJisuanji gongcheng, 2020
This paper proposes an anomaly community detection method via subspace by combining node attributes with structure information.First,in the given set of to-be-tested communities,the subspace solution strategy based on the average distance of attributes ...
ZHAO Qiqi, MA Huifang, LIU Haijiao, JIA Junjie
doaj   +1 more source

Subspace Methods [PDF]

open access: yes, 2019
With increasingly many variables available to macroeconomic forecasters, dimension reduction methods are essential to obtain accurate forecasts. Subspace methods are a new class of dimension reduction methods that have been found to yield precise forecasts when applied to macroeconomic and financial data.
Boot, Tom, Nibbering, Didier
openaire   +2 more sources

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