论文信息 - The EM Algorithm for Mixtures of Factor AnalyzersZoubin GhahramaniGeo

The EM Algorithm for Mixtures of Factor AnalyzersZoubin GhahramaniGeo

Factor analysis, a statistical method for modeling the covariance structure of high dimensional data using a small number of latent variables, can be extended by allowing diierent local factor models in diierent regions of the input space. This results in a model which concurrently performs clustering and dimensionality reduction, and can be thought of as a reduced dimension mixture of Gaussians. We present an exact Expectation{Maximization algorithm for tting the parameters of this mixture of factor analyzers.

HintonDepartment | E. Rey

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