SPEECH RECOGNITION APPARATUS AND METHOD
First Claim
1. A speech recognition apparatus comprising:
- a service estimation unit configured to estimate a service being performed by a user, by using non-speech information related to a user'"'"'s service, and to generate service information indicating a content of the estimated service;
a first speech recognition unit configured to perform speech recognition on speech information provided by the user, in accordance with a speech recognition technique corresponding to the service information, and to generate a first speech recognition result; and
a feature quantity extraction unit configured to extract at least one feature quantity related to the service being performed by the user, from the first speech recognition result,wherein the service estimation unit re-estimates the service by using the at least one feature quantity, and the first speech recognition unit performs speech recognition based on service information resulting from the re-estimation.
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Abstract
According to one embodiment, a speech recognition apparatus includes following units. The service estimation unit estimates a service being performed by a user, by using non-speech information, and to generate service information. The speech recognition unit performs speech recognition on speech information in accordance with a speech recognition technique corresponding to the service information. The feature quantity extraction unit extracts a feature quantity related to the service of the user, from the speech recognition result. The service estimation unit re-estimates the service by using the feature quantity. The speech recognition unit performs speech recognition based on the re-estimation result.
41 Citations
12 Claims
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1. A speech recognition apparatus comprising:
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a service estimation unit configured to estimate a service being performed by a user, by using non-speech information related to a user'"'"'s service, and to generate service information indicating a content of the estimated service; a first speech recognition unit configured to perform speech recognition on speech information provided by the user, in accordance with a speech recognition technique corresponding to the service information, and to generate a first speech recognition result; and a feature quantity extraction unit configured to extract at least one feature quantity related to the service being performed by the user, from the first speech recognition result, wherein the service estimation unit re-estimates the service by using the at least one feature quantity, and the first speech recognition unit performs speech recognition based on service information resulting from the re-estimation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A speech recognition method comprising:
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estimating a service being performed by a user, by using non-speech information related to a user'"'"'s service, to generate service information indicating a content of the estimated service; performing speech recognition on speech information provided by the user, in accordance with a speech recognition technique corresponding to the service information, and generating a first speech recognition result; extracting at least one feature quantity related to the service being performed by the user, from the first speech recognition result; re-estimating the service by using the at least one feature quantity; and performing speech recognition based on service information resulting from the re-estimation.
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12. A non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a method comprising:
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estimating a service being performed by a user, by using non-speech information related to a user'"'"'s service, to generate service information indicating a content of the estimated service; performing speech recognition on speech information provided by the user, in accordance with a speech recognition technique corresponding to the service information, and generating a first speech recognition result; extracting at least one feature quantity related to the service being performed by the user, from the first speech recognition result; re-estimating the service by using the at least one feature quantity; and performing speech recognition based on service information resulting from the re-estimation.
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Specification