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Efficient Classification by Removing Bayesian Confusing Samples
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AI
DOI：10.1109/TKDE.2023.3303425.png)
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摘要
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Improving the generalization performance of classifiers from data pre-processing perspective has recently received considerable attention in the machine learning community. Although many methods have been proposed in the past decades, most of them lack theoretical foundations and cannot guarantee better generalization performance of classifiers on processed datasets. To overcome this flaw, in this paper, we propose a method, which is supported by Bayesian decision theory and percolation theory, to improve generalization performance by removing Bayesian confusing samples (abbr. BCS). Specifically, for a training set, we define the samples that misclassified by the Bayesian optimal classifier as BCS and prove that a classifier trained on the training set after removing BCS can obtain better generalization performance. To find out BCS, we indicate that BCS can be identified according to the size of global homogeneous cluster, a set of samples with the same labels, based on percolation theory. Based on these analysis, we propose a method to construct global homogeneous clusters and remove BCS from the training set. Extensive experiments show that the proposed method is effective for a number of classical and state-of-the-art classifiers.
Keyword:
Bayes methods
Training
Task analysis
Data models
Boosting
Support vector machines
Lattices
Generalization performance
classification
data pre-processing
percolation theory
期刊
IF:
10.4
论文数:
6.8K
被引数:
3.2W
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