| Paper: | SP-P13.14 (ICASSP 2003 Paper) | ||
| Session: | General Topics in Robust Speech Recognition | ||
| Time: | Thursday, May 20, 13:00 - 15:00 | ||
| Presentation: | Poster (ICASSP 2003 Presentation) | ||
| Topic: | Speech Processing: Large Vocabulary Recognition/Search | ||
| Title: | DYNAMIC SCHEDULING OF DECODING PROCESSES FOR DIRECTORY ASSISTANCE | ||
| Authors: | Renato De Mori; University of Avignon | ||
| Frédéric Béchet; University of Avignon | |||
| Gerard Subsol; University of Avignon | |||
| Dominique Massonie; University of Avignon | |||
| Abstract: | This paper deals with the difficult task of recognition of a large vocabulary of proper names in a directoryassistance application. Research on the European project SMADA has shown that there is a need of an elaborateand effective decision strategy that limits the risk of false automation. This paper proposes a new strategy whichintegrates, as well as a general decoder, a set of decoders specialized in some specific situations.Specialized recognition processes do not need to be applicable for every input, but they have to be scheduled andperformed only under certain conditions. A first implementation of such a model is proposed here, through a rejectionstrategy of the hypotheses output by a general decoder.This strategy leads to a very significant improvement over the results obtained by a standard rejection method basedon acoustic confidence scores only. | ||
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