Poisson过程的矩估计与多步MLE
Method of Moments Estimators and Multu-step MLE for Poisson Processes
摘要:
在非齐次Poisson过程观测的情况下,我们引入了有限维参数的两类估计。这些是矩量法和多步MLE的估计量。证明了矩量法的估计是相合的且渐近正态的,多步极大似然估计是相合的且渐近有效的。多步MLE过程的构造分两步完成。首先,我们构造了一个一致的估计,然后使用该估计的一步和两步MLE的建设。所提出的方法的主要优点是其计算简单。
英文摘要:
We introduce two types of estimators of the finite-dimensional parameters in the case of observations of inhomogeneous Poisson processes. These are the estimators of the method of moments and multi-step MLE. It is shown that the estimators of the method of moments are consistent and asymptotically normal and the multi-step MLE are consistent and asymptotically efficient. The construction of multi-step MLE-process is done in two steps. First we construct a consistent estimator by the observations on some learning interval and then this estimator is used for construction of one-step and two-step MLEs. The main advantage of the proposed approach is its computational simplicity.
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