Skip to main content
On Improvements to CI-based GMM Selection
Computer Science Department
  • Arthur Chan, Carnegie Mellon University
  • Mosur Ravishankar, Carnegie Mellon University
  • Alexander I Rudnicky, Carnegie Mellon University
Date of Original Version
Conference Proceeding
Abstract or Description

Gaussian Mixture Model (GMM) computation is known to be one of the most computation-intensive components in speech decoding. In our previous work, context-independent model based GMM selection (CIGMMS) was found to be an effective way to reduce the cost of GMM computation without significant loss in recognition accuracy. In this work, we propose three methods to further improve the performance of CIGMMS. Each method brings an additional 5-10% relative speed improvement, with a cumulative improvement up to 37% on some tasks. Detailed analysis and experimental results on three corpora are presented.

Citation Information
Arthur Chan, Mosur Ravishankar and Alexander I Rudnicky. "On Improvements to CI-based GMM Selection" (2005)
Available at: