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Titolo: An empirical investigation on the use of diversity for creation of classifier ensembles
Autori: 
Data di pubblicazione: 2015
Rivista: 
LECTURE NOTES IN COMPUTER SCIENCE  
Abstract: We address one of the main open issues about the use of diversity in multiple classifier systems: the effectiveness of the explicit use of diversity measures for creation of classifier ensembles. So far, diver- sity measures have been mostly used for ensemble pruning, namely, for selecting a subset of classifiers out of an original, larger ensemble. Here we focus on pruning techniques based on forward/backward selection, since they allow a direct comparison with the simple estimation of accu- racy of classifier ensemble. We empirically carry out this comparison for several diversity measures and benchmark data sets, using bagging as the ensemble construction technique, and majority voting as the fusion rule. Our results provide further and more direct evidence to previous observations against the effectiveness of the use of diversity measures for ensemble pruning, but also show that, combined with ensemble accuracy estimated on a validation set, diversity can have a regularization effect when the validation set size is small.
Handle: http://hdl.handle.net/11584/127683
ISBN: 978-3-319-20247-1
978-3-319-20248-8
978-3-319-20247-1
978-3-319-20248-8
Tipologia:4.1 Contributo in Atti di convegno

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