LNCS 2798 Dynamic Integration of Classifiers in the Space of Principal Components 1st Edition by Alexey Tsymbal, Mykola Pechenizkiy, Seppo Puuronen, David Patterson  ISBN 3540394036 9783540394037

LNCS 2798 – Dynamic Integration of Classifiers in the Space of Principal Components 1st Edition by Alexey Tsymbal, Mykola Pechenizkiy, Seppo Puuronen, David W. Patterson  – Ebook PDF Instant Download/Delivery. 3540394036, 9783540394037

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ISBN 10: 3540394036

ISBN 13: 9783540394037

Author:  Alexey Tsymbal, Mykola Pechenizkiy, Seppo Puuronen, David W. Patterson  

LNCS 2798 – Dynamic Integration of Classifiers in the Space of Principal Components 1st Edition: 

Recent research has shown the integration of multiple classifiers to be one of the most important directions in machine learning and data mining. It was shown that, for an ensemble to be successful, it should consist of accurate and diverse base classifiers. However, it is also important that the integration procedure in the ensemble should properly utilize the ensemble diversity. In this paper, we present an algorithm for the dynamic integration of classifiers in the space of extracted features (FEDIC). It is based on the technique of dynamic integration, in which local accuracy estimates are calculated for each base classifier of an ensemble, in the neighborhood of a new instance to be processed. Generally, the whole space of original features is used to find the neighborhood of a new instance for local accuracy estimates in dynamic integration. In this paper, we propose to use feature extraction in order to cope with the curse of dimensionality in the dynamic integration of classifiers. We consider classical principal component analysis and two eigenvector-based supervised feature extraction methods that take into account class information. Experimental results show that, on some data sets, the use of FEDIC leads to significantly higher ensemble accuracies than the use of plain dynamic integration in the space of original features. As a rule, FEDIC outperforms plain dynamic integration on data sets, on which both dynamic integration works (it outperforms static integration), and considered feature extraction techniques are able to successfully extract relevant features.

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