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2000

New Approaches to Spoken Document Retrieval

13 years 3 months ago
New Approaches to Spoken Document Retrieval
This paper presents four novel techniques for open-vocabulary spoken document retrieval: a method to detect slots that possibly contain a query feature; a method to estimate occurrence probabilities; a technique that we call collection-wide probability re-estimation and a weighting scheme which takes advantage of the fact that long query features are detected more reliably. These four techniques have been evaluated using the TREC-6 spoken document retrieval test collection to determine the improvements in retrieval effectiveness with respect to a baseline retrieval method. Results show that the retrieval effectiveness can be improved considerably despite the large number of speech recognition errors.
Martin Wechsler, Eugen Munteanu, Peter Schäub
Added 18 Dec 2010
Updated 18 Dec 2010
Type Journal
Year 2000
Where IR
Authors Martin Wechsler, Eugen Munteanu, Peter Schäuble
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