Smoothing Parameter Selection in two Frameworks for Penalized Splines
惩罚样条两种框架下的平滑参数选择AI 解读 ↓
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惩罚样条两种框架下的平滑参数选择AI 解读 ↓
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Summary There are two popular smoothing parameter selection methods for spline smoothing. First, smoothing parameters can be estimated by minimizing criteria that approximate the average mean-squared error of the regression function estimator. Second, the maximum likelihood paradigm can be employed, under the assumption that the regression function is a realization of some stochastic process. The asymptotic properties of both smoothing parameter estimators for penalized splines are studied and compared. A simulation study and a real data example illustrate the theoretical findings.
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