Recognizing the Numeric Language in Natural Spoken Dialogue

摘要

A system and a method are provided. A speech recognition processor receives unconstrained input speech and outputs a string of words. The speech recognition processor is based on a numeric language that represents a subset of a vocabulary. The subset includes a set of words identified as being for interpreting and understanding number strings. A numeric understanding processor contains classes of rules for converting the string of words into a sequence of digits. The speech recognition processor utilizes an acoustic model database. A validation database stores a set of valid sequences of digits. A string validation processor outputs validity information based on a comparison of a sequence of digits output by the numeric understanding processor with valid sequences of digits in the validation database.

主权项

1. A method comprising:
receiving input speech from a user; converting, via a processor, only the input speech corresponding to single digits into a string of words, wherein each word in the string of words is modeled using a three segment word structure comprising a plurality of heads and a plurality of tails; converting the string of words into a sequence of digits using classes of rules; comparing the sequence of digits to a plurality of valid sequences of digits, to yield validity information; and providing the validity information to a device associated with the user.