A new validation criterion for guiding the selection of variables by the successive projections algorithm in classification problems

Journal of the Brazilian Chemical Society

Sófacles F. C. Soares²  Roberto K. H. Galvão¹  Márcio J. C. Pontes²  Mário C. U. Araújo² 

[1] ,Universidade Federal da Paraíba Centro de Ciências Exatas e da Natureza Departamento de QuímicaJoão Pessoa PB ,Brazil

关键词: variable selection;    successive projections algorithm;    classification;    model validation;   

DOI  :  10.5935/0103-5053.20130262

来源: SciELO

【 摘 要 】

A simplification in SPA-LDA is proposed to circumvent the need for separate training and validation sets. The number of degrees of freedom is employed in the cost function to avoid model overfitting. Three examples are presented: classification of coffee, diesel and vegetable oils by using UV-Vis spectrometry, NIR spectrometry and voltammetry, respectively.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License