In previous works, it has been experimentally shown that the implementation of Error Correcting Output Coding (ECOC) classification methods with an ensemble of parallel and independent non linear dichotomizers (ECOC PND) outperforms the implementation with a single monolithic multi layer perceptron (ECOC MLP). The low dependence of the errors on different codeword bits was qualitatively indicated as one of the main factors affecting this result. In this paper, we quantitatively evaluate the dependence of output errors in ECOC learning machines using mutual information based measures, and we study the relation between dependence of output errors and classification performances.

Quantitative evaluation of dependence among outputs in ECOC classifiers using mutual information based measures / F. Masulli, G. Valentini - In: Neural Networks, 2001 : proceedings. IJCNN '01 : international Joint Conference on / [a cura di] K. Marko, P. Webos. - Piscataway : IEEE, 2001. - ISBN 0780370449. - pp. 784-789 (( convegno International Joint Conference on Neural Networks tenutosi a Washington nel 2001 [10.1109/IJCNN.2001.939459].

Quantitative evaluation of dependence among outputs in ECOC classifiers using mutual information based measures

G. Valentini
2001

Abstract

In previous works, it has been experimentally shown that the implementation of Error Correcting Output Coding (ECOC) classification methods with an ensemble of parallel and independent non linear dichotomizers (ECOC PND) outperforms the implementation with a single monolithic multi layer perceptron (ECOC MLP). The low dependence of the errors on different codeword bits was qualitatively indicated as one of the main factors affecting this result. In this paper, we quantitatively evaluate the dependence of output errors in ECOC learning machines using mutual information based measures, and we study the relation between dependence of output errors and classification performances.
Settore INF/01 - Informatica
Settore ING-INF/05 - Sistemi di Elaborazione delle Informazioni
2001
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/440759
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