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Symbolic one-class learning from imbalanced datasets: Application in medical diagnosis
LUIS JAVIER MENA CAMARE
JESUS ANTONIO GONZALEZ BERNAL
Acceso Abierto
Atribución-NoComercial-SinDerivadas
Machine learning
Imbalanced datasets
One-class learning
Classification algorithm
Rule extraction
When working with real-world applications we often find imbalanced datasets, those for which there exists a majority class with normal data and a minority class with abnormal or important data. In this work, we make an overview of the class imbalance problem; we review consequences, possible causes and existing strategies to cope with the inconveniences associated to this problem. As an effort to contribute to the solution of this problem, we propose a new rule induction algorithm named Rule Extraction for MEdical Diagnosis (REMED), as a symbolic one-class learning approach. For the evaluation of the proposed method, we use different medical diagnosis datasets taking into account quantitative metrics, comprehensibility, and reliability. We performed a comparison of REMED versus C4.5 and RIPPER combined with over-sampling and cost-sensitive strategies. This empirical analysis of the REMED algorithm showed it to be quantitatively competitive with C4.5 and RIPPER in terms of the area under the Receiver Operating Characteristic curve (AUC) and the geometric mean, but overcame them in terms of comprehensibility and reliability. Results of our experiments show that REMED generated rules systems with a larger degree of abstraction and patterns closer to well-known abnormal values associated to each considered medical dataset.
World Scientic Publishing Company
2009
Artículo
Inglés
Estudiantes
Investigadores
Público en general
Mena-Camare, L. & Gonzalez-Bernal, J.A. (2009). Symbolic one-class learning from imbalanced datasets: Application in medical diagnosis, International Journal on Articial Intelligence Tools, Vol. 18 (2): 273-309
CIENCIA DE LOS ORDENADORES
Versión aceptada
acceptedVersion - Versión aceptada
Aparece en las colecciones: Artículos de Ciencias Computacionales

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