摘要
本文使用ＥＭ算法解决某些完全数据下的参数估计问题，使用Ｆｉｓｈｅｒ公式计算ＥＭ步长，避免了求解非线性方程和计算条件期望．对区间型数据、成败型数据和重复测量模型。
In this paper we handle some problems of parameter estimation based on complete data via the EM algorithm and apply Fisher formula to computation of the EM step. Thus solving nonlinear equation and computing conditional expectation can be avoided. By using above method we obtain computatinal formulas of the EM step for intervaltype data, binary data, and repeated measuring model.
基金
国家和北京市自然科学基金
