Error prediction in spoken dialog systems
AssigneeAT&T Corp.
InventorsDilek Hakkani-Tur, Giuseppe Riccardi, Gokhan Tur
Life of this patent
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Abstract
A spoken dialog system configured to use a combined confidence score. A first confidence score, indicating a confidence level in a speech recognition result of recognizing an utterance, is provided. A second confidence level, indicating a confidence level of mapping the speech recognition result to an intent, is provided. The first confidence score and the second confidence score are combined to form a combined confidence score. A determination is made, with respect to whether to accept the intent, based on the combined confidence score.
Claims32
A method in a spoken dialog system, the method comprising:
- providing a first confidence score indicating a confidence level in a speech recognition result of recognizing an utterance;
- providing a second confidence score indicating a confidence level of mapping the speech recognition result to an intent;
- combining the first confidence score with the second confidence score to form a combined confidence score;
- and
- determining whether to accept the intent based on the combined confidence score.
A spoken dialog system comprising:
- a first component configured to provide a first confidence score indicating a confidence level in a speech recognition result of recognizing an utterance;
- a second component configured to provide a second confidence score indicating a confidence level of mapping the speech recognition result to an intent;
- a third component configured to combine the first confidence score with the second confidence score to form a combined confidence score;
- and
- a fourth component configured to determine whether to accept the intent based on the combined confidence score.
A machine-readable medium having a plurality of instructions included therein, the plurality of instructions comprising:
- instructions for providing a first confidence score indicating a confidence level in a speech recognition result of recognizing an utterance;
- instructions for providing a second confidence score indicating a confidence level of mapping the speech recognition result to an intent;
- instructions for combining the first confidence score with the second confidence score to form a combined confidence score;
- and
- instructions for determining whether to accept the intent based on the combined confidence score.
An apparatus comprising:
- means for providing a first confidence score indicating a confidence level in a speech recognition result of recognizing an utterance;
- means for providing a second confidence score indicating a confidence level of mapping a speech recognition result to an intent;
- means for combining a first confidence score with a second confidence score to form a combined confidence score;
- and
- means for determining whether to accept an intent based on a combined confidence score.
Dependencies are inferred from the claim text.