next up previous contents
Next: Task 5.5: Status Up: Task 5.5: Context Dependent Previous: Task 5.5: Context Dependent

Task 5.5: Objective

Context-dependent phone modelling has been shown to reduce word error rates of connectionist-HMM systems by up to 25% when using approximately 500 context-dependent phone models. Gaussian mixture systems typically use thousands of context-dependent models, and the aim of this work is to investigate the effect of increasing the number of CD phone models.

Christophe Ris