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Linking Direct Orthogonal Signal Correction and Wavelet Transform with Radial Basis Function Neural Network to Analyze Overlapping Spectra

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2 Author(s)
Shouxin Ren ; Dept. of Chem., Inner Mongolia Univ., Huhhot ; Ling Gao

This paper suggests a novel method named DOSCWTRBFN based on radial basis function neural network (RBFN) with direct orthogonal signal correction (DOSC) and wavelet transform (WT) as a pre-processing tool for the simultaneous spectrophotometric determination of Mn(II), Zn(II), Co(II) and Cd(II). In this case, by optimization, the number of DOSC components, tolerance factor, wavelet function, decomposition level, the numbers of hidden nodes and the width sigma of RBFN for DOSCWTRBFN were selected as 1, 0.001, Symmlet 5, 3, 20 and 1.2 respectively. The relative standard errors of prediction (RSEP) for all components with DOSCWTRBFN, WTRBFN and RBFN were 7.5, 8.3 and 8.9 percent respectively. The proposed method has been successfully applied to analyze overlapping spectra and was proven to be better than other techniques.

Published in:

Knowledge Discovery and Data Mining, 2009. WKDD 2009. Second International Workshop on

Date of Conference:

23-25 Jan. 2009