Method and system for considering information about an expected response when performing speech recognition

摘要

A speech recognition system receives and analyzes speech input from a user in order to recognize and accept a response from the user. Under certain conditions, information about the response expected from the user may be available. In these situations, the available information about the expected response is used to modify the behavior of the speech recognition system by taking this information into account. The modified behavior of the speech recognition system comprises adjusting the rejection threshold when speech input matches the predetermined expected response.

主权项

1. A method for recognizing speech, the method comprising the steps of:
analyzing speech input with an apparatus using at least one hardware-implemented processor to generate a hypothesis including multiple elements; generating respective confidence factors for the multiple elements of the speech input; comparing a confidence factor for at least one of the elements to a threshold for accepting the element as properly recognized; and if the element is not accepted in the comparison, comparing at least a portion of the hypothesis containing the unaccepted element to at least a portion of an expected response; if the comparison of the portion of the hypothesis containing the unaccepted element with the portion of the expected response is favorable, storing the unaccepted element for subsequent analysis and proceeding to further analyze another element of the hypothesis.