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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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Proceedings ArticleDOI

Fast sparse representation with prototypes

TL;DR: This work proposes an algorithm that exploits the fact that signals in most problems can be modeled by a small set of prototypes and shows that the l\-norm minimization problem can be reduced to a much smaller problem, thereby gaining significant speed-ups with much less memory requirements.
Proceedings ArticleDOI

A sparsity detection framework for on-off random access channels

TL;DR: In this article, a simple on-off random multiple access channel (MAC) was considered, where n users communicate simultaneously to a single receiver and each user is assigned a single codeword which it transmits with some probability λ over m degrees of freedom.
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Speaker identification using multilayer perceptrons and radial basis function networks

TL;DR: The results showed that the Multilayer Perceptrons networks were superior in memory usage and classification time, however, they suffered from long training time and the error rate was slightly higher than that of Radial Basis Function networks.
Journal ArticleDOI

A bootstrap method for structure detection of NARMAX models

TL;DR: A bootstrap structure detection (BSD) algorithm is developed as a means of determining the structure of highly over-parameterized models and provides accurate estimates of parameter statistics without relying on assumptions made by traditional procedures and yields a parsimonious description of the system.
Journal ArticleDOI

Time-varying model identification for time-frequency feature extraction from EEG data

TL;DR: Simulation studies and applications to real EEG data show that the proposed algorithm can provide important transient information on the inherent dynamics of nonstationary processes.
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.