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| Paper: | SP-P13.14 |
| 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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