Some Nonparametric Techniques for Estimating the Intensity Function of a Cancer Related Nonstationary Poisson Process
癌症相关非平稳泊松过程强度函数的非参数估计
An attempt is made to model the appearance times of metastases as a nonstationary Poisson process. Three algorithms are developed for this task. The first follows the kernel approach used in probability density estimation by Parzen and Rosenblatt; the second extends the work of Grenander on mortality measurements to a more general censoring scheme appropriate for the present application; the third employs a discrete maximum penalized likelihood approach. We obtain estimates…