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arXiv 1111.6160stat.ML
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分类精度的最优指数界

Optimal exponential bounds on the accuracy of classification

N. I. Pentacaput

摘要:

我们考虑一个标准的二进制分类问题。任何基于训练数据的二元分类器的性能都是以超额风险为特征的。研究了基于超额风险的极大极小精度置信函数的Bahadur型指数界。我们研究这个数量如何依赖于其特征在于由指数的熵的类的回归函数或相应的分布从类的贝叶斯分类器的类的分布的类的复杂性。我们还研究了它对分类问题的边缘参数的依赖性。

英文摘要:

We consider a standard binary classification problem. The performance of any binary classifier based on the training data is characterized by the excess risk. We study Bahadur's type exponential bounds on the minimax accuracy confidence function based on the excess risk. We study how this quantity depends on the complexity of the class of distributions characterized by exponents of entropies of the class of regression functions or of the class of Bayes classifiers corresponding to the distributions from the class. We also study its dependence on margin parameters of the classification problem.

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