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Model-Based Learning Using a Mixture of Mixtures of Gaussian and Uniform Distributions
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Ryan P. Browne,Paul D. McNicholas,Matthew D. Sparling
Issue Date:April 2012
pp. 814-817
We introduce a mixture model whereby each mixture component is itself a mixture of a multivariate Gaussian distribution and a multivariate uniform distribution. Although this model could be used for model-based clustering (model-based unsupervised learning...
 
Mixtures of Shifted Asymmetric Laplace Distributions
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Brian C. Franczak,Ryan P. Browne,Paul D. McNicholas
Issue Date:November 2013
pp. 1
A mixture of shifted asymmetric Laplace distributions is introduced and used for clustering and classification. A variant of the EM algorithm is developed for parameter estimation by exploiting the relationship with the generalized inverse Gaussian distrib...
 
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