Model Selection for Mixture Models Using Perfect Sample

On Model Selection and Concavity for Finite Mixture Models

Generating Gaussian Mixture Models by Model Selection For Speech Recognition

While all modern speech recognition systems use Gaussian mixture models, there is no standard method to determine the number of mixture components. Current choices for mixture component numbers are usually arbitrary with little justification. In this paper we apply some common model selection methods to determine the number of mixture components. We show that they are ill-suited for the speech ...

Models for Sample Selection Bias

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Fbst for Mixture Model Selection

The Fully Bayesian Significance Test (FBST) is a coherent Bayesian significance test for sharp hypotheses. The computation of the evidence measure used on the FBST is performed in two steps: 1) The optimization step consists of finding f∗, the maximum (supremum) of the posterior under the null hypothesis. 2) The integration step consists of integrating the posterior density over the Tangential ...

Perfect posterior simulation for mixture and hidden Markov models

In this paper we present an application of the read-once coupling from the past algorithm to problems in Bayesian inference for latent statistical models. We describe a method for perfect simulation from the posterior distribution of the unknown mixture weights in a mixture model. Our method is extended to a more general mixture problem, where unknown parameters exist for the mixture components...

An improved cluster model selection method for agglomerative hierarchical speaker clustering using incremental Gaussian mixture models

In this paper, we improve our previous cluster model selection method for agglomerative hierarchical speaker clustering (AHSC) based on incremental Gaussian mixture models (iGMMs). In the previous work, we measured the likelihood of all the data points in a given cluster for each mixture component of the GMM modeling the cluster. Then, we selected the N -best component Gaussians with the highes...