A Stochastic Version of the EM Algorithm for Mixture Cure Model with Exponentiated Weibull Family of Lifetimes

In this paper, we propose a stochastic approximation to the well-studied expectation–maximization (EM) algorithm for finding the maximum likelihood (ML)-type estimates in situations where missing data arise naturally and a proportion of individuals are immune to the event of interest. A flexible family of three parameter exponentiated Weibull (EW) distributions is assumed to characterize lifetimes of the non-immune individuals as it …