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Cited by 1,893

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Rotation Forest: A New Classifier Ensemble Method

Rodriguez, J.J., Kuncheva, L.I., Alonso, C.J.·2006·IEEE Transactions on Pattern Analysis and Machine Intelligence

Abstract

We propose a method for generating classifier ensembles based on feature extraction. To create the training data for a base classifier, the feature set is randomly split into K subsets (K is a parameter of the algorithm) and Principal Component Analysis (PCA) is applied to each subset. All principal components are retained in order to preserve the variability information in the data. Thus, K axis rotations take place to form the new features for a base classifier. The idea of the rotation approach is to encourage simultaneously individual accuracy and diversity within the ensemble. Diversity is promoted through the feature extraction for each base classifier. Decision trees were chosen here because they are sensitive to rotation of the feature axes, hence the name "forest." Accuracy is sought by keeping all principal components and also using the whole data set to train each base classifier. Using WEKA, we examined the Rotation Forest ensemble on a random selection of 33 benchmark data sets from the UCI repository and compared it with Bagging, AdaBoost, and Random Forest. The results were favorable to Rotation Forest and prompted an investigation into diversity-accuracy landscape of the ensemble models. Diversity-error diagrams revealed that Rotation Forest ensembles construct individual classifiers which are more accurate than these in AdaBoost and Random Forest, and more diverse than these in Bagging, sometimes more accurate as well.

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Crossref · 10.1109/tpami.2006.211

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Metadata

Authors
Rodriguez, J. J., Kuncheva, L. I., & Alonso, C. J.
Venue
IEEE Transactions on Pattern Analysis and Machine Intelligence
Published
2006-10
Volume
28
Issue
10
Pages
1619-1630
ISSN
  • 0162-8828 (ISSN-L)
  • 2160-9292
OpenAlex
W2150757437
Cited by
1,893
References
48
FWCI
32.53
Type
journal article
Language
en
Open access
closed

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