Orthogonal Least Absolute Value for Sparse Spike Deconvolution
Sign Up to like & getrecommendations! Published in 2021 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-021-01667-z
Abstract: Several phenomena encountered in nature are characterized by very localized events occurring randomly at given times. Random pulses are an appropriate modelling tool for such events. Usually, the impulses are hidden in the noise due… read more here.
Keywords: orthogonal least; least absolute; deconvolution; absolute value ... See more keywords
Further study on two fixed point iterative schemes for absolute value equations
Sign Up to like & getrecommendations! Published in 2024 at "Computational and Applied Mathematics"
DOI: 10.1007/s40314-024-03032-7
Abstract: In this paper, we reconsider two iterative methods for solving absolute value equations (AVE), which were proposed by Ali and Pan (Jpn J Ind Appl Math 40:303–314, 2023). Convergence results of the two iterative schemes… read more here.
Keywords: iterative schemes; value equations; two fixed; absolute value ... See more keywords
Unified smoothing functions for absolute value equation associated with second-order cone
Sign Up to like & getrecommendations! Published in 2019 at "Applied Numerical Mathematics"
DOI: 10.1016/j.apnum.2018.08.019
Abstract: Abstract In this paper, we explore a unified way to construct smoothing functions for solving the absolute value equation associated with second-order cone (SOCAVE). Numerical comparisons are presented, which illustrate what kinds of smoothing functions… read more here.
Keywords: smoothing functions; associated second; value equation; equation associated ... See more keywords
New test algorithms for system of absolute value equations
Sign Up to like & getrecommendations! Published in 2025 at "Engineering Computations"
DOI: 10.1108/ec-08-2024-0745
Abstract: PurposeThis study presents an interval test numerical iteration method specifically designed to solve a system of absolute value equations (SAVE). The proposed method is valuable and efficient in solving a system of absolute value equations.… read more here.
Keywords: absolute value; new test; system absolute; value equations ... See more keywords
A new two-step iterative technique for efficiently solving absolute value equations
Sign Up to like & getrecommendations! Published in 2024 at "Engineering Computations"
DOI: 10.1108/ec-11-2023-0754
Abstract: PurposeThis work presents a new two-step iterative technique for solving absolute value equations. The developed technique is valuable and effective for solving the absolute value equation. Various examples are given to demonstrate the accuracy and… read more here.
Keywords: absolute value; step iterative; two step; technique ... See more keywords
Two-Stage ML Detector Using Absolute Value of IQ Components and SVM for Adaptive OFDM-IM
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3229071
Abstract: Among various index modulation technology, adaptive orthogonal frequency division multiplexing with index modulation (A-OFDM-IM) improves reliability by solving the problem of deep fading. However, the maximal likelihood (ML) detector of A-OFDM-IM has high complexity by… read more here.
Keywords: two stage; absolute value; detector; proposed detectors ... See more keywords
A Two‐Step Matrix‐Splitting Iterative Method for Solving the Generalized Absolute Value Equation
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Mathematics"
DOI: 10.1155/2024/8396895
Abstract: In this paper, we present a two‐step Newton‐based matrix‐splitting iteration method for solving the generalize absolute value equation. This method can produce a number of two‐step Newton‐based relaxation iteration algorithms with the right matrix‐splitting options.… read more here.
Keywords: method; value equation; matrix splitting; step ... See more keywords
Training diversity promotes absolute-value-guided choice
Sign Up to like & getrecommendations! Published in 2022 at "PLOS Computational Biology"
DOI: 10.1371/journal.pcbi.1010664
Abstract: Many decision-making studies have demonstrated that humans learn either expected values or relative preferences among choice options, yet little is known about what environmental conditions promote one strategy over the other. Here, we test the… read more here.
Keywords: training diversity; absolute values; choice; diversity ... See more keywords
QMLE for periodic absolute value GARCH models
Sign Up to like & getrecommendations! Published in 2024 at "Random Operators and Stochastic Equations"
DOI: 10.1515/rose-2023-2027
Abstract: Abstract Periodic generalized autoregressive conditionally heteroscedastic (PGARCH) models were introduced by Bollerslev and Ghysels [T. Bollerslev and E. Ghysels, Periodic autoregressive conditional heteroscedasticity, J. Bus. Econom. Statist. 14 1996, 2, 139–151]; these models have gained… read more here.
Keywords: absolute value; value garch; periodic absolute; qmle periodic ... See more keywords
An Improved Convergence Theorem of the Newton-Based AOR Method for Generalized Absolute Value Equations
Sign Up to like & getrecommendations! Published in 2022 at "Symmetry"
DOI: 10.3390/sym14061249
Abstract: For solving the large sparse generalized absolute value equations, recently a Newton-based accelerated over-relaxation (NAOR) method was investigated. In this paper, we widen the convergence regions for the parameters and establish a new convergence theorem… read more here.
Keywords: convergence; convergence theorem; method; absolute value ... See more keywords
On the Alternative SOR-like Iteration Method for Solving Absolute Value Equations
Sign Up to like & getrecommendations! Published in 2023 at "Symmetry"
DOI: 10.3390/sym15030589
Abstract: In this paper, by equivalently reformulating the absolute value equation (AVE) into an alternative two-by-two block nonlinear equation, we put forward an alternative SOR-like (ASOR-like) iteration method to solve the AVE. The convergence of the… read more here.
Keywords: iteration method; like iteration; alternative sor; iteration ... See more keywords