Method and apparatus for performing relational speech recognition
First Claim
1. A method for performing speech recognition, the method comprising:
- acquiring a speech signal from a user;
performing a first recognition pass by applying a first language model to said speech signal, said first language model being constrained in accordance with a structured data source; and
generating a subsequent language model based at least in part on results from said first recognition pass.
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Abstract
A method and apparatus are provided for performing speech recognition using observable and meaningful relationships between words within a single utterance and using a structured data source as a source of constraints on the recognition process. Results from a first constrained speech recognition pass can be combined with information about the observable and meaningful word relationships to constrain or simplify subsequent recognition passes. This iterative process greatly reduces the search space required for each recognition pass, making the speech recognition process more efficient, faster and accurate.
59 Citations
21 Claims
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1. A method for performing speech recognition, the method comprising:
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acquiring a speech signal from a user;
performing a first recognition pass by applying a first language model to said speech signal, said first language model being constrained in accordance with a structured data source; and
generating a subsequent language model based at least in part on results from said first recognition pass. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer readable medium containing an executable program for performing speech recognition, where the program performs the steps of:
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acquiring a speech signal from a user;
performing a first recognition pass by applying a first language model to said speech signal, said first language model being constrained in accordance with a structured data source; and
generating a subsequent language model based at least in part on results from said first recognition pass. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Apparatus for performing speech recognition, said apparatus comprising:
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means for acquiring a speech signal from a user;
means for performing a first recognition pass by applying a first language model to said speech signal, said first language model being constrained in accordance with a structured data source; and
means for generating a subsequent language model based at least in part on results from said first recognition pass.
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Specification