192 citations · 340 across the 18 of their papers we have counts for
3 papers · 1 filter
A block EM algorithm for multivariate skew normal and skew t-mixture models
Sharon X Lee, Kaleb L Leemaqz, Geoffrey J McLachlan
Finite mixtures of skew distributions provide a flexible tool for modelling heterogeneous data with asymmetric distributional features. However, parameter estimation via the Expect…
A simple multithreaded implementation of the EM algorithm for mixture models
Sharon X Lee, Kaleb L Lee, Geoffrey J McLachlan
Finite mixture models have been widely used for the modelling and analysis of data from heterogeneous populations. Maximum likelihood estimation of the parameters is typically carr…
Comment on "On Nomenclature, and the Relative Merits of Two Formulations of Skew Distributions" by A. Azzalini, R. Browne, M. Genton, and P. McNicholas
Geoffrey J. McLachlan, Sharon X. Lee
We comment on the recent paper by Azzalini et al. (2015) on two different distributions proposed in the literature for the modelling of data that have asymmetric and possibly long-…