Jing Chen
Modified multi-direction iterative algorithm for separable nonlinear models with missing data
Chen, Jing; Hu, Manfeng; Mao, Yawen; Zhu, Quanmin
Abstract
Multi-direction iterative (MUL-DI) algorithm is an efficient algorithm for large-scale models, and it establishes a theoretical linkage between least squares (LS) and gradient descent (GD) algorithms. However, it involves Givens transformation and dense matrix calculation in each iteration, which leads to heavy computational efforts. In this letter, a modified MUL-DI algorithm is proposed for separable nonlinear models with missing data. Several directions are designed using a diagonal matrix, and their corresponding step-sizes are obtained based on LS algorithm. Compared with the traditional algorithms, the algorithm proposed in this letter has the following advantages: (1) has a faster convergence rate; (2) has a simple cost function; (3) is more robust to the condition number; (4) has less computational efforts. A simulation example shows the effectiveness of the modified MUL-DI algorithm.
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 31, 2022 |
Online Publication Date | Sep 5, 2022 |
Publication Date | Sep 5, 2022 |
Deposit Date | Nov 4, 2022 |
Publicly Available Date | Sep 6, 2024 |
Journal | IEEE Signal Processing Letters |
Print ISSN | 1070-9908 |
Publisher | Institute of Electrical and Electronics Engineers |
Peer Reviewed | Peer Reviewed |
Volume | 29 |
Pages | 1968-1972 |
DOI | https://doi.org/10.1109/LSP.2022.3204408 |
Keywords | Applied Mathematics, Electrical and Electronic Engineering, Signal Processing, Convergence rate, multi-direction iterative algorithm, missing data, separable nonlinear model |
Public URL | https://uwe-repository.worktribe.com/output/10024003 |
Publisher URL | https://ieeexplore.ieee.org/document/9878024 |
Files
This file is under embargo until Sep 6, 2024 due to copyright reasons.
Contact Quan.Zhu@uwe.ac.uk to request a copy for personal use.
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