Method and system for retrieving documents with spoken queries
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United States of America Patent
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Jun 2, 2009
Grant Date -
Jul 7, 2005
app pub date -
Feb 25, 2005
filing date -
Apr 25, 2002
priority date (Note) -
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Abstract
A method indexes and retrieves documents stored in a database. A document feature vector is extracted from each document and the documents are then indexed according to the feature vectors. A spoken query is converted to an intermediate representation representing likelihoods of possible sequential combinations of terms in the spoken query. A query certainty vector is generated from the intermediate representation. Other information is acquired. The other information is combined with the query certainty vector. The query vector and the other information are then compared to each of the document feature vectors to retrieve a ranked result set of documents.
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