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Error analysis of coefficient-based regularized algorithm for density-level detection
Hong Chen1, Zhibin Pan, Luoqing Li
1College of Science, Huazhong Agricultural University, Wuhan 430070, China. chenh@mail.hzau.edu.cn
Abstract:
In this letter, we consider a density-level detection (DLD) problem by a coefficient-based classification framework with [Formula: see text]-regularizer and data-dependent hypothesis spaces. Although the data-dependent characteristic of the algorithm provides flexibility and adaptivity for DLD, it leads to difficulty in generalization error analysis. To overcome this difficulty, an error decomposition is introduced from an established classification framework. On the basis of this decomposition, the estimate of the learning rate is obtained by using Rademacher average and stepping-stone techniques. In particular, the estimate is independent of the capacity assumption used in the previous literature.
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