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Type: Artigo de periódico
Title: PLS pruning: a new approach to variable selection for multivariate calibration based on Hessian matrix of errors
Author: Lima, SLT
Mello, C
Poppi, RJ
Abstract: In this article, a new approach called partial least squares (PLS) pruning is described for variable selection in PLS modeling. The aim of the method is the deletion of unimportant PLS coefficients of regression by using information from all second derivatives of the error function. The proposed approach was applied to Brix determination in sugar cane juice by near infrared spectroscopy. The results obtained were promising, leading to a meaningful variable reduction of 96% without loss of model prediction capability. (c) 2004 Elsevier B.V. All rights reserved.
Subject: partial least squares
variable selection
Hessian matrix of errors
Country: Holanda
Editor: Elsevier Science Bv
Citation: Chemometrics And Intelligent Laboratory Systems. Elsevier Science Bv, v. 76, n. 1, n. 73, n. 78, 2005.
Rights: fechado
Identifier DOI: 10.1016/j.chemolab.2004.09.007
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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