ISCA Archive Eurospeech 1997
ISCA Archive Eurospeech 1997

Dynamic lexicon for a very large vocabulary vocal dictation

Marie-José Caraty, Claude Montacié, Fabrice Lefèvre

For very large vocabulary vocal dictation systems, we present a decoding strategy useful to reduce the lexical decoding cost. For each test-utterance, a sub-lexicon is selected from a very large recognition vocabulary. Such a recognition sub-lexicon is called Dynamic Lexicon (DL). Various algorithms of DL selection are developed and tested in terms of coverage rate of textual corpus. From these experiments, we describe a DL constitution we choose to use in D-DAL, our HMM-based recognizer competing for the first campaign of french vocal dictation supported by AUPELF. The contribution made by this original DL is a posteriori confirmed through the AUPELF-B1 test-dictation.


doi: 10.21437/Eurospeech.1997-679

Cite as: Caraty, M.-J., Montacié, C., Lefèvre, F. (1997) Dynamic lexicon for a very large vocabulary vocal dictation. Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997), 2691-2694, doi: 10.21437/Eurospeech.1997-679

@inproceedings{caraty97_eurospeech,
  author={Marie-José Caraty and Claude Montacié and Fabrice Lefèvre},
  title={{Dynamic lexicon for a very large vocabulary vocal dictation}},
  year=1997,
  booktitle={Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997)},
  pages={2691--2694},
  doi={10.21437/Eurospeech.1997-679},
  issn={1018-4074}
}