Chromatographic Pattern Recognition Using Optimized One-Class Classifiers

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

Antonio V Sousa (Autor) Outra; Ana Maria Mendonca (Autor) FEUP; Aurelio Campilho (Autor) FEUP

Ata de Conferência Internacional

Título: Pattern Recognition and Image Analysis

Páginas: 449-456

IbPRIA 2009 - Iberian Conference on Pattern Recognotion and Image Analysis

Póvoa de Varzim, Portugal, 10 a 12 de Junho de 2009

Indexação

ISI Proceedings

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

COMPENDEX

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da computação e da informação

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia biomédica

Outras Informações

ID Authenticus: P-003-RKD

DOI: 10.1007/978-3-642-02172-5_58

Abstract (EN): This paper presents a method for automating the selection of the rejection rate of one-class classifiers aiming at optimizing the classifier performance. These classifiers are used in a new classification approach to deal with class imbalance in Thin-Layer Chromatography (TLC) patterns, which is due to the huge difference between the number of normal and pathological cases, as a consequence of the rarity of Lysosomal Storage Disorders (LSD) diseases. The classification is performed in two decision stages, both implemented using optimized one-class classifiers: the first stage aims at recognizing most of the normal samples; the outliers of this first decision level are presented to the second stage, which is a multiclassifier prepared to deal with both pathological and normal patterns. The results that were obtained proved that the proposed methodology is able to overcome some of the difficulties associated with the choice of the rejection rate of one-class classifiers, and generally contribute to the minimization of the imbalance problem in TLC pattern classification.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8