Results 21 to 30 of about 44,174 (262)

Moving target detection method based on CUR‐RPCA for missing array elements

open access: yesIET Radar, Sonar & Navigation, 2022
Moving target detection performance is seriously affected by missing array elements for multichannel synthetic aperture radar (Multi‐SAR) systems. Meanwhile, there is a contradiction between the accuracy of data recovery and the computational burden in ...
Jianli Shi   +4 more
doaj   +1 more source

Matrix Completion Problems

open access: yesLinear Algebra and its Applications, 2009
In the paper the author gives results about the following two problems over an arbitrary field: Problem 1. Under which conditions does there exist a matrix with prescribed eigenvalues, characteristic polynomials, when some of its entries are prescribed and others vary. Problem 2.
openaire   +1 more source

Doubly constrained totally positive line insertion

open access: yesSpecial Matrices, 2020
It is shown that in any TP matrix, a line (row or column) with two speci˝ed entries in any positions (and the others appropriately chosen) may be inserted in any position, as long as the two entries are consistent with total positivity.
Johnson Charles R., Allen David W.
doaj   +1 more source

Efficient Data Gathering Methods in Wireless Sensor Networks Using GBTR Matrix Completion

open access: yesSensors, 2016
To obtain efficient data gathering methods for wireless sensor networks (WSNs), a novel graph based transform regularized (GBTR) matrix completion algorithm is proposed.
Donghao Wang   +4 more
doaj   +1 more source

Penyelesaian Metode Quick Simplex Terhadap Metode Dua Fase dengan Dua Elemen secara Simultan pada Kasus Minimum

open access: yesKubik, 2021
Linear programming is a way to solve the problemof allocating limiter resources optimally. One of the methods used in solving the simplex method for mixed constraints is the two-phase method.
Elfira Safitri   +3 more
doaj   +1 more source

Parameterized Algorithms for the Matrix Completion Problem

open access: yesCoRR, 2018
We consider two matrix completion problems, in which we are given a matrix with missing entries and the task is to complete the matrix in a way that (1) minimizes the rank, or (2) minimizes the number of distinct rows. We study the parameterized complexity of the two aforementioned problems with respect to several parameters of interest, including the ...
Ganian, R.   +3 more
openaire   +4 more sources

Wide and Deep Model of Multi-Source Information-Aware Recommender System

open access: yesIEEE Access, 2018
Collaborative filtering recommendation suffers from the problems of high data sparsity, poor expansibility, cold start, and the difficulty of modeling user preferences, among which data sparsity is the greatest issue. Although our previous work on matrix
Weihua Yuan   +4 more
doaj   +1 more source

An Online Semi-Definite Programming with a Generalized Log-Determinant Regularizer and Its Applications

open access: yesMathematics, 2022
We consider a variant of the online semi-definite programming problem (OSDP). Specifically, in our problem, the setting of the decision space is a set of positive semi-definite matrices constrained by two norms in parallel: the L∞ norm to the diagonal ...
Yaxiong Liu   +3 more
doaj   +1 more source

Methodology of optimization of territorially-branch structure of region in the conditions of economy reforming [PDF]

open access: yesЭкономика региона, 2012
This paper is devoted to the analysis of transition from centralized planning economy to market relations, revealing of problems and working out of necessary macro proportions in placing of productive forces, integration maintenance between ...
Arkadiy Iosifovich Moroz
doaj   +1 more source

Dynamic Tensor Modeling for Missing Data Completion in Electronic Toll Collection Gantry Systems

open access: yesSensors, 2023
The deployment of Electronic Toll Collection (ETC) gantry systems marks a transformative advancement in the journey toward an interconnected and intelligent highway traffic infrastructure.
Yikang Rui, Yan Zhao, Wenqi Lu, Can Wang
doaj   +1 more source

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