尺度参数趋于零的最大相关熵准则回归模型
Maximum Correntropy Criterion Regression models with tending-to-zero scale parameters
摘要:
在统计学习的框架下,最大相关熵准则回归(MCCR)模型在尺度参数取定值或趋于无穷大时得到了很好的研究。研究尺度参数趋于零的MCCR模型。当样本量$n$趋于无穷大时,MCCR模型的最优学习率在渐近意义下为${\mathcal{O}}(n^{-1})$.在有限样本情况下,比较了MCCR、Huber和最小二乘回归模型的稳健性。最后给出了这三种方法在实际数据上的应用。
英文摘要:
Maximum correntropy criterion regression (MCCR) models have been well studied within the frame of statistical learning when the scale parameters take fixed values or go to infinity. This paper studies the MCCR models with tending-to-zero scale parameters. It is revealed that the optimal learning rate of MCCR models is ${\mathcal{O}}(n^{-1})$ in the asymptotic sense when the sample size $n$ goes to infinity. In the case of finite samples, the performances on robustness of MCCR, Huber and the least square regression models are compared. The applications of these three methods on real data are also displayed.
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