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A Comment on Maximum Likelihood Estimation for Finite Mixtures of Distributions
Authors:K P Burnham
Abstract:Iterative numerical methods are necessary to find the maximum likelihood estimates for finite mixture distributions. This paper shows that it will often be possible to analytically reduce the number of equations that must ultimately be solved numerically. Such a reduction in dimensionality has not generally been used, or sought after, for mixture distributions. Yet such results are easily derived when each mixture component is assumed to be from the same parametric model within the exponential family.
Keywords:Finite mixtures  Exponential family  Maximum likelihood  Moment equations
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