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Vote-boosting ensembles

delete2018-11-01
delete47
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OA
AI
M
Maryam Sabzevari *
G
Gonzalo Martínez-Muñoz
A
Alberto Suárez
DOI:10.1016/j.patcog.2018.05.022delete
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Abstract

Abstract

En 中文
Vote-boosting is a sequential ensemble learning method in which the individual classifiers are built on different weighted versions of the training data. To build a new classifier, the weight of each training instance is determined in terms of the degree of disagreement among the current ensemble predictions for that instance. For low class-label noise levels, especially when simple base learners are used, emphasis should be made on instances for which the disagreement rate is high. When more flexible classifiers are used and as the noise level increases, the emphasis on these uncertain instances should be reduced. In fact, at sufficiently high levels of class-label noise, the focus should be on instances on which the ensemble classifiers agree. The optimal type of emphasis can be automatically determined using cross validation. An extensive empirical analysis using the beta distribution as emphasis function illustrates that vote-boosting is an effective method to generate ensembles that are both accurate and robust. (C) 2018 Elsevier Ltd. All rights reserved.
Keywords:
Ensemble learning
Boosting
Uncertainty-based emphasis
Robust classification
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Pattern Recognition cover
Pattern Recognition
IF:
7.6
Papers:
1.3W
Citations:
4.5W

Organization

A
Autonomous University of Madrid
Scholars:
2.1W
Papers: 1.7W
Citations: 29