Patent ID: 7865357
Filing Date: 2011-01-04
Classification: G10L

Abstract:
1. A computer-implementable method comprising: providing a generic word n-gram model; converting, using a processor of a computer, the word n-gram model into a probabilistic context free grammar (PCFG); modifying, using the processor of the computer, the PCFG into a substantially application-independent PCFG, which constitutes a generic shareable filler model, and recognizing speech signals with the help of the shareable filler model using the processor of the computer, wherein modifying the PCFG into a substantially application-independent PCFG comprises removing links from a start node of the PCFG to words in the PCFG to eliminate all links between the start node of the PCFG to words in the PCFG and only maintaining at least one link between the start node and at least one backoff node, the backoff node being utilized to estimate probabilities associated with the start node and the end node.