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Titolo:
Weighing schemes in multivariate data analysis
Autore:
Hoskuldsson, A;
Indirizzi:
DTU, AKP, DK-2800 Lyngby, Denmark DTU Lyngby Denmark DK-2800DTU, AKP, DK-2800 Lyngby, Denmark
Titolo Testata:
JOURNAL OF CHEMOMETRICS
fascicolo: 4, volume: 15, anno: 2001,
pagine: 371 - 396
SICI:
0886-9383(200105)15:4<371:WSIMDA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHEMOMETRICS;
Keywords:
subset selection; the H-principle; PLS regression; PCA; weighing schemes; priority modelling; target modelling; loading weights; linear combinations;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Hoskuldsson, A DTU, AKP, Bldg 358, DK-2800 Lyngby, Denmark DTU Bldg 358 Lyngby Denmark DK-2800 K-2800 Lyngby, Denmark
Citazione:
A. Hoskuldsson, "Weighing schemes in multivariate data analysis", J CHEMOMETR, 15(4), 2001, pp. 371-396

Abstract

A collection of methods will be presented, designed to reflect special purpose or features in data. Many chemometric methods can be viewed as an application of special weighing schemes of the type presented here. After a short review of the H-principle of mathematical modelling, it will be applied to develop different weighing schemes and some simple ways to judge the quality or significance of a weighing scheme. Weighing schemes for two-way data will be established. We shall show how a loading vector can be adapted toa given score vector in order to improve the possibilities of interpretation of the results. These results will be extended to multiway data. It willbe shown how we can develop different weighing schemes for multiway data depending on the purpose or interpretability of the results. The importance of these weighing schemes is due to the fact that they yield or emphasize the part of data that is 'in focus' in relation to the task in question. Copyright (C) 2001 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 22:05:53