System and method for tightly coupling automatic speech recognition and search
AssigneeAT&T Intellectual Property I, L.P.
InventorsSrinivas Bangalore, Taniya Mishra
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AssigneeAT&T Intellectual Property I, L.P.
InventorsSrinivas Bangalore, Taniya Mishra
Estimating the term…
Systems, methods, and computer-readable storage media relate to performing a search. A system configured to practice the method first receives from an automatic speech recognition (ASR) system a word lattice based on speech query and receives indexed documents from an information repository. The system composes, based on the word lattice and the indexed documents, at least one triple including a query word, selected indexed document, and weight. The system generates an N-best path through the word lattice based on the at least one triple and re-ranks ASR output based on the N-best path. The system aggregates each weight across the query words to generate N-best listings and returns search results to the speech query based on the re-ranked ASR output and the N-best listings. The lattice can be a confusion network, the arc density of which can be adjusted for a desired performance level.
A method comprising:
A system comprising:
A computer-readable storage device having instructions stored which, when executed by a computing device, cause the computing device to perform operations comprising:
Dependencies are inferred from the claim text.