masterThesis
Desenvolvimento de interface gráfica baseada na análise exploratória para dados químicos multivariados
Fecha
2021-12-16Registro en:
FREITAS, Daniel Lucas Dantas de. Desenvolvimento de interface gráfica baseada na análise exploratória para dados químicos multivariados. 2021. 97f. Dissertação (Mestrado em Química) - Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Natal, 2021.
Autor
Freitas, Daniel Lucas Dantas de
Resumen
This dissertation aimed to present a graphical user interface based on unsupervised
classification methods. This tool was built with the objective of serving as a friendly,
iterative, educational and scientific computational resource, with strong visual appeal
and free to use. For this, the interface uses known analysis methods such as principal
component analysis (PCA) and cluster analysis (CA), as well as the use of these two
combined techniques. Among the clustering models, agglomerative and partitional
methods are available, where the former is used to form clusters and the latter as part of
a methodology for estimating the number of clusters. This analysis tool was designed
with a focus on first-order multivariate chemical data; however, it can be used to treat
data from different sources. For its evaluation, a set of real chemical data with three
different classes was used, and the entire procedure used was presented. In addition, the
interface enables data processing, showing itself as a potential independent tool for data
analysis. The graphical results presented here are useful and innovative, serving as
theoretical and practical support for future chemometric applications.