Results 1 to 10 of about 12,040 (299)

Adaptive Alternating Minimization Algorithms [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
The classical alternating minimization (or projection) algorithm has been successful in the context of solving optimization problems over two variables. The iterative nature and simplicity of the algorithm has led to its application to many areas such as signal processing, information theory, control, and finance. A general set of sufficient conditions
Urs Niesen   +2 more
openaire   +5 more sources

Low-Complexity Self-Interference Cancellation for Multiple Access Full Duplex Systems

open access: yesSensors, 2022
Self-interference occurs when there is electromagnetic coupling between the transmission and reception of the same node; thus, degrading the RX sensitivity to incoming signals.
Shachar Shayovitz   +2 more
doaj   +1 more source

Constrained Total Generalized p-Variation Minimization for Few-View X-Ray Computed Tomography Image Reconstruction. [PDF]

open access: yesPLoS ONE, 2016
Total generalized variation (TGV)-based computed tomography (CT) image reconstruction, which utilizes high-order image derivatives, is superior to total variation-based methods in terms of the preservation of edge information and the suppression of ...
Hanming Zhang   +5 more
doaj   +1 more source

Phase Retrieval Using Alternating Minimization [PDF]

open access: yesIEEE Transactions on Signal Processing, 2015
Accepted for publication in IEEE Transactions on Signal ...
Praneeth Netrapalli   +2 more
openaire   +3 more sources

An alternating minimization algorithm for Factor Analysis [PDF]

open access: yesKybernetika, 2019
The problem of decomposing a given covariance matrix as the sum of a positive semi-definite matrix of given rank and a positive semi-definite diagonal matrix, is considered. We present a projection-type algorithm to address this problem. This algorithm appears to perform extremely well and is extremely fast even when the given covariance matrix has a ...
Valentina Ciccone   +2 more
openaire   +3 more sources

Using Alternating Minimization and Convexified Carleman Weighted Objective Functional for a Time-Domain Inverse Scattering Problem

open access: yesAxioms, 2023
This paper considers a 1D time-domain inverse scattering problem for the Helmholtz equation in which penetrable scatterers are to be determined from boundary measurements of the scattering data.
Nguyen Trung Thành
doaj   +1 more source

Multi-Channel Blind Restoration of Mixed Noise Images under Atmospheric Turbulence

open access: yesAtmosphere, 2022
The imaging quality of astronomical or space objects is significantly degraded by atmospheric turbulence, photon noise, image sensor noise, and other factors.
Huizhen Yang   +4 more
doaj   +1 more source

Sparse Non-negative Matrix Factorization Algorithm Based on Proximal Alternating Linearized Minimization [PDF]

open access: yesJisuanji gongcheng, 2019
This paper combinessparsity constraint and Proximal Alternating Linearized Minimization(PALM),proposes a Sparse Non-negative Matrix Factorization(SNMF) algorithm,called SNMF_PALM.The non-convex Smoothly Clipped Absolute Deviation(SCAD) function is used ...
WANG Jing,YANG Dan
doaj   +1 more source

Fronthaul Compression for Uplink Massive MIMO Using Matrix Decomposition

open access: yesIEEE Open Journal of the Communications Society, 2023
Massive multiple-input-multiple-output (MIMO) is a key enabler for obtaining higher data rates in the next generation wireless technology. While it has the power to transform cellular communication, with potential for spatial diversity and multiplexing ...
P. Aswathylakshmi, Radha Krishna Ganti
doaj   +1 more source

Truncated Fractional-Order Total Variation for Image Denoising under Cauchy Noise

open access: yesAxioms, 2022
In recent years, the fractional-order derivative has achieved great success in removing Gaussian noise, impulsive noise, multiplicative noise and so on, but few works have been conducted to remove Cauchy noise. In this paper, we propose a novel nonconvex
Jianguang Zhu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy