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Repechage Bootstrap Aggregating for Misclassification Cost Reduction

机译:重用自举聚合以减少错误分类的成本

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This paper examines the use of bootstrap aggregating (bagging) with classifier learning methods based upon hold-out pruning (or growing) for misclassification cost reduction. Both decision tree and rule set classifiers are used. The paper introduces a "repechage" variation of bagging, that uses, as the hold-out data for cost reduction, the "out of bag" items, which would be unused in standard bagging. The paper presents experimental evidence that, when used with the hold-out cost reduction methods, the repechage method can achieve better misclassification cost results than the straightforward use of standard bagging used with the same hold-out cost reduction method. Superior results for the repechage method on some problems with previously defined cost matrices are shown for a cost reduction decision tree method and two cost reduction rule set methods.
机译:本文研究了基于基于保留修剪(或增长)的分类器学习方法的引导聚合(装袋)方法,以减少错误分类的成本。决策树和规则集分类器均被使用。本文介绍了套袋的“重新包装”变体,它使用“套袋”物品作为降低成本的保留数据,这些物品在标准套袋中不会使用。本文提供了实验证据,当与保留成本降低方法一起使用标准套袋时,与保留费用降低方法一起使用时,重新发送方法可以实现更好的误分类成本结果。对于成本降低决策树方法和两种成本降低规则集方法,显示了针对先前定义的成本矩阵的某些问题的repechage方法的出色结果。

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