Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Calculating classifier calibration performance with a custom modification of Weka
Año:2014
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones,
  • Ingeniería eléctrica, electrónica y automática
Datos
Descripción
Calibration is often overlooked in machine-learning problem-solving approaches, even in situations where an accurate estimation of predicted probabilities, and not only a discrimination between classes, is critical for decision-making. One of the reasons is the lack of readily available open-source software packages which can easily calculate calibration metrics. In order to provide one such tool, we have developed a custom modification of the Weka data mining software, which implements the calculation of Hosmer-Lemeshow groups of risk and the Pearson chi-square statistic comparison between estimated and observed frequencies for binary problems. We provide calibration performance estimations with Logistic regression (LR), BayesNet, Naïve Bayes, artificial neural network (ANN), support vector machine (SVM), knearest neighbors (KNN), decision trees and Repeated Incremental Pruning to Produce Error Reduction (RIPPER) models with six different datasets. Our experiments show that SVMs with RBF kernels exhibit the best results in terms of calibration, while decision trees, RIPPER and KNN are highly unlikely to produce well-calibrated models.
Internacional
Si
Nombre congreso
4th International Conference on Integrated Information
Tipo de participación
960
Lugar del congreso
Madrid
Revisores
Si
ISBN o ISSN
9780735412835
DOI
Fecha inicio congreso
05/09/2014
Fecha fin congreso
08/09/2014
Desde la página
128
Hasta la página
133
Título de las actas
Volume 1644: International Conference on Integrated Information (IC-ININFO 2014) Proceedings of the 4th International Conference on Integrated Information
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Alexander Zlotnik Enaliev (UPM)
  • Autor: Ascensión Gallardo Antolín (Department of Signal Theory and Communications. Carlos III University)
  • Autor: Juan Manuel Montero Martinez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tecnología del Habla
  • Departamento: Ingeniería Electrónica
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