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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

System identification-based frequency domain feature extraction for defect detection and characterization

TL;DR: The proposed approach offers a general framework for selection and extraction of the dynamic property-related features of structures for defect detection and characterization, and provides a useful alternative to the existing methods with a potential of improving NDE performance.
Journal ArticleDOI

Application of Nonlinear Time Series and Machine Learning Algorithms for Forecasting Groundwater Flooding in a Lowland Karst Area

TL;DR: In this article , a nonlinear time series analysis based nonlinear autoregressive model with exogenous variables (NARX), machine learning based near support vector regression as well as a linear time-series ARX model were compared to predict groundwater flooding in a lowland karst area of Ireland.
Journal ArticleDOI

Assessment of high (diurnal) to low (seasonal) frequency variations of isoprene emission rates using a neural network approach

TL;DR: Using a statistical approach based on artificial neural networks, an emission algorithm (ISO-LF) account- ing for high to low frequency variations was developed for isoprene emission rates.
Journal ArticleDOI

Feature selection of generalized extreme learning machine for regression problems

TL;DR: Two greedy learning algorithms are proposed that enhance the generalization performance and simultaneously reduce the testing time compared to the original GELM, and both can select appropriate input features to construct the p-order reduced polynomial function as output weights for G ELM.
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.