Title
A stochastic EM algorithm for a semiparametric mixture model
Abstract
Recently, there has been a considerable interest in finite mixture models with semi-/non-parametric component distributions. Identifiability of such model parameters is generally not obvious, and when it occurs, inference methods are rather specific to the mixture model under consideration. Hence, a generalization of the EM algorithm to semiparametric mixture models is proposed. The approach is methodological and can be applied to a wide class of semiparametric mixture models. The behavior of the proposed EM type estimators is studied numerically not only through several Monte-Carlo experiments but also through comparison with alternative methods existing in the literature. In addition to these numerical experiments, applications to real data are provided, showing that the estimation method behaves well, that it is fast and easy to be implemented.
Year
DOI
Venue
2007
10.1016/j.csda.2006.08.015
Computational Statistics & Data Analysis
Keywords
Field
DocType
stochastic em algorithm,monte-carlo experiment,model parameter,mixture model,stochastic em,estimation method,em algorithm,semiparametric mixture model,proposed em type estimator,finite mixture model,semiparametric model,alternative method,considerable interest
Econometrics,Monte Carlo method,Parametric model,Expectation–maximization algorithm,Identifiability,Semiparametric model,Semiparametric regression,Statistics,Mixture model,Mathematics,Estimator
Journal
Volume
Issue
ISSN
51
11
Computational Statistics and Data Analysis
Citations 
PageRank 
References 
13
2.11
0
Authors
3
Name
Order
Citations
PageRank
Laurent Bordes1364.37
Didier Chauveau2153.51
Pierre Vandekerkhove3132.11