Method for recognizing speech
First Claim
1. Method for recognizing speech,wherein at least keywords (Kj) in a received speech phrase (SP) are recognized employing a keyword spotting based recognition process (12) and a given language model (LM), wherein a combination of at least one first language or keyword model (KM) containing and/or describing possible in-vocabulary or keywords or phrases (Kj) and one second language or out-of-vocabulary model (OOVM) describing at least in part out-of-vocabulary words or phrases (Gj) is used as said language model (LM), and wherein a global penalty (Pglob) is associated to and/or introduced or inserted into said language model (LM) so as to increase the recognition of keywords (Kj), characterized in thatat least one variable penalty value (Ptrans, P1, . . . , P6) is associated with and/or used to define the global penalty (Pglob).
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Accused Products
Abstract
To increase the accuracy and the flexibility of a method for recognizing speech which employs a keyword spotting process on the basis of a combination of a keyword model (KM) and a garbage model (GM) it is suggested to associate at least one variable penalty value (Ptrans, P1, . . . , P6) with a global penalty (Pglob) so as to increase the recognition of keywords (Kj).
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Citations
14 Claims
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1. Method for recognizing speech,
wherein at least keywords (Kj) in a received speech phrase (SP) are recognized employing a keyword spotting based recognition process (12) and a given language model (LM), wherein a combination of at least one first language or keyword model (KM) containing and/or describing possible in-vocabulary or keywords or phrases (Kj) and one second language or out-of-vocabulary model (OOVM) describing at least in part out-of-vocabulary words or phrases (Gj) is used as said language model (LM), and wherein a global penalty (Pglob) is associated to and/or introduced or inserted into said language model (LM) so as to increase the recognition of keywords (Kj), characterized in that at least one variable penalty value (Ptrans, P1, . . . , P6) is associated with and/or used to define the global penalty (Pglob).
Specification