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Open AccessJournal ArticleDOI

Orthogonal least squares methods and their application to non-linear system identification

Sheng Chen, +2 more
- 01 Nov 1989 - 
- Vol. 50, Iss: 5, pp 1873-1896
TLDR
Identification algorithms based on the well-known linear least squares methods of gaussian elimination, Cholesky decomposition, classical Gram-Schmidt, modified Gram- Schmidt, Householder transformation, Givens method, and singular value decomposition are reviewed.
Abstract
Identification algorithms based on the well-known linear least squares methods of gaussian elimination, Cholesky decomposition, classical Gram-Schmidt, modified Gram-Schmidt, Householder transformation, Givens method, and singular value decomposition are reviewed. The classical Gram-Schmidt, modified Gram-Schmidt, and Householder transformation algorithms are then extended to combine structure determination, or which terms to include in the model, and parameter estimation in a very simple and efficient manner for a class of multivariate discrete-time non-linear stochastic systems which are linear in the parameters.

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Citations
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Journal ArticleDOI

Multi-Objective Evolutionary Framework for Non-linear System Identification: A Comprehensive Investigation

TL;DR: In this paper, a multi-objective framework for structure selection of nonlinear systems which are represented by polynomial NARX models is proposed and three well-known MOEAs such as NSGA-II, SPEA-II and MOEA/D are thoroughly investigated to determine if there exists any significant difference in their search performance.
Journal ArticleDOI

Accurate structural identification for layered composite structures, through a wave and finite element scheme

TL;DR: In this paper, an approach for identifying the geometric and material characteristics of layered composite structures through an inverse wave and finite element approach is presented. But the success of the approach is independent of the employed excitation frequency regime, meaning that both structural dynamics and ultrasound frequency spectra can be employed.
Journal ArticleDOI

Experimental design and model construction algorithms for radial basis function networks

TL;DR: The proposed approach enhances the very popular forward OLS-algorithm-based RBF model construction method since the resultant RBF models are constructed in a manner that the system dynamics approximation capability, model adequacy and robustness are optimized simultaneously.
Journal ArticleDOI

Minimum Description Length Sparse Modeling and Region Merging for Lossless Plenoptic Image Compression

TL;DR: A region merging segmentation under the MDL criterion for partitioning the views into regions having their own specific sparse predictors, achieving better lossless compression ratios than straightforward usage of standard image and video compression methods for the spiral sequence of views.
Posted Content

Cooperative Greedy Pursuit Strategies for Sparse Signal Representation by Partitioning

TL;DR: In addition to rendering stunning improvements in sparsity with respect to the concomitant trigonometric basis, these dictionaries enable a fast implementation of the approach via the Fast Fourier Transform.
References
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Book

Applied Regression Analysis

TL;DR: In this article, the Straight Line Case is used to fit a straight line by least squares, and the Durbin-Watson Test is used for checking the straight line fit.
Journal ArticleDOI

Singular value decomposition and least squares solutions

TL;DR: The decomposition of A is called the singular value decomposition (SVD) and the diagonal elements of ∑ are the non-negative square roots of the eigenvalues of A T A; they are called singular values.
Book

Linear regression analysis

TL;DR: In this paper, the authors take into serious consideration the further development of regression computer programs that are efficient, accurate, and considered an important part of statistical research, and provide up-to-date accounts of computational methods and algorithms currently in use without getting entrenched in minor computing details.
Journal ArticleDOI

Input-output parametric models for non-linear systems Part II: stochastic non-linear systems

TL;DR: Recursive input-output models for non-linear multivariate discrete-time systems are derived, and sufficient conditions for their existence are defined.