METHOD AND SYSTEM FOR EFFICIENT SPOKEN TERM DETECTION USING CONFUSION NETWORKS
First Claim
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1. A method for spoken term detection, comprising:
- receiving phone level out-of-vocabulary (OOV) keyword queries;
converting the phone level OOV keyword queries to words;
generating a confusion network (CN) based keyword searching (KWS) index; and
using the CN based KWS index for both in-vocabulary (IV) keyword queries and the OOV keyword queries, wherein the receiving, converting, generating and using steps are performed by a computer system comprising a memory and at least one processor coupled to the memory.
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Abstract
Systems and methods for spoken term detection are provided. A method for spoken term detection, comprises receiving phone level out-of-vocabulary (OOV) keyword queries, converting the phone level OOV keyword queries to words, generating a confusion network (CN) based keyword searching (KWS) index, and using the CN based KWS index for both in-vocabulary (IV) keyword queries and the OOV keyword queries.
201 Citations
20 Claims
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1. A method for spoken term detection, comprising:
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receiving phone level out-of-vocabulary (OOV) keyword queries; converting the phone level OOV keyword queries to words; generating a confusion network (CN) based keyword searching (KWS) index; and using the CN based KWS index for both in-vocabulary (IV) keyword queries and the OOV keyword queries, wherein the receiving, converting, generating and using steps are performed by a computer system comprising a memory and at least one processor coupled to the memory. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for spoken term detection, comprising:
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a query module capable of receiving phone level out-of-vocabulary (OOV) keyword queries; a mapping module capable of converting the phone level OOV keyword queries to words; an indexing module capable of generating a confusion network (CN) based keyword searching (KWS) index; and a search module capable of using the CN based KWS index for both in-vocabulary (IV) keyword queries and the OOV keyword queries. - View Dependent Claims (17, 18, 19)
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20. A computer program product for spoken term detection, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to perform a method comprising:
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receiving phone level out-of-vocabulary (OOV) keyword queries; converting the phone level OOV keyword queries to words; generating a confusion network (CN) based keyword searching (KWS) index; and using the CN based KWS index for both in-vocabulary (IV) keyword queries and the OOV keyword queries.
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Specification