System and Method for Recognizing Proper Names in Dialog Systems
First Claim
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1. A computer-implemented method in a dialog system, comprising:
- receiving a user utterance including a proper name;
recognizing the proper name in the user utterance;
determining a first confidence score for the recognized proper name;
generating a first machine response the user utterance including an indirect confirmation question related to the proper name, wherein the first machine response does not repeat the proper name, if the first confidence score is below a defined threshold value;
receiving a user response to the indirect confirmation question; and
modifying the first confidence score to generate a second confidence score based on the user response.
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Abstract
Embodiments of a dialog system that utilizes contextual information to perform recognition of proper names are described. Unlike present name recognition methods on large name lists that generally focus strictly on the static aspect of the names, embodiments of the present system take into account of the temporal, recency and context effect when names are used, and formulates new questions to further constrain the search space or grammar for recognition of the past and current utterances.
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Citations
18 Claims
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1. A computer-implemented method in a dialog system, comprising:
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receiving a user utterance including a proper name; recognizing the proper name in the user utterance; determining a first confidence score for the recognized proper name; generating a first machine response the user utterance including an indirect confirmation question related to the proper name, wherein the first machine response does not repeat the proper name, if the first confidence score is below a defined threshold value; receiving a user response to the indirect confirmation question; and modifying the first confidence score to generate a second confidence score based on the user response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A dialog system, comprising:
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a speech recognition unit receiving a user utterance including a proper name; a recognizer unit recognizing the proper name in the user utterance; a scoring unit determining a first confidence score for the recognized proper name; and a question formulation unit generating a first machine response the user utterance including an indirect confirmation question related to the proper name, wherein the first machine response does not repeat the proper name, if the first confidence score is below a defined threshold value, wherein the speech recognizer unit receives a user response to the indirect confirmation question, and the scoring unit modifies the first confidence score to generate a second confidence score based on the user response. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification