Restructuring Exponential Family Mixture Models

  title={Restructuring Exponential Family Mixture Models},
  author={Pierre L. Dognin and John R. Hershey and Vaibhava Goel and Peder A. Olsen},
Variational KL (varKL) divergence minimization was previously applied to restructuring acoustic models (AMs) using Gaussian mixture models by reducing their size while preserving their accuracy. In this paper, we derive a related varKL for exponential family mixture models (EMMs) and test its accuracy using the weighted local maximum likelihood agglomerative clustering technique. Minimizing varKL between a reference and a restructured AM led previously to the variational expectation… CONTINUE READING


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