Artificial neural networks applied to the classification of hair samples according to pigment and sex using non‐invasive analytical techniques. (9th June 2020)

• Record Type: Journal Article
• Authors: Berto, Tamires Messias; Santos, Mônica Cardoso; Pereira, Fabíola Manhas Verbi; Filletti, Érica Regina
• Is Part Of: X-ray spectrometry. Volume 49:Number 6(2020)
• Page Start: 632
• Page End: 641
• Publication Date: 2020-06-09
• Subjects: X-ray spectroscopy -- Periodicals; 543.62
• DOI: 10.1002/xrs.3163
• Languages: English
• ISSNs: 0049-8246

Abstract

Abstract : In this study, we investigated the possibility of using an artificial neural network (ANN) to classify human hair samples according to pigment (original or bleached hair) and sex (female or male) from numerical data obtained by wavelength dispersive X‐ray fluorescence (WDXRF) and by laser‐induced breakdown spectroscopy (LIBS). The results were promising, showing that the developed ANNs are able to classify the pigment and donor sex of hair samples with 100% and 89.5% accuracy, respectively, in the test set using WDXRF data. For the LIBS data in the test set, 100% of the pigment classifications were correct, and 78.9% of the donor sex classifications were correct.