ISCA Archive ICSLP 2000
ISCA Archive ICSLP 2000

Rejection and key-phrase spottin techniques using a mumble model in a czech telephone dialog system

Ludek Müller, Filip Jurcicek, Lubos Smidl

This paper describes an implementation of a mumble model in a real-time Czech telephone dialog system, and its contribution to speech recognition. A short overview of the Czech telephone dialog system with a special focus on its speech recognition module is given. Furthermore, the structure of a mumble model is described. A new rejection technique based on a local time comparison between a mumble’s score and a word’s score, evaluated by a Viterbi search is explained. A key-phrase spotting technique using a mumble model is shown. The both techniques have been evaluated with a Czech telephone database. The results show the 25.1% equal error rate of the rejection technique and 15.5% equal error rate of the key-phrase spotting technique.


Cite as: Müller, L., Jurcicek, F., Smidl, L. (2000) Rejection and key-phrase spottin techniques using a mumble model in a czech telephone dialog system. Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000), vol. 1, 134-137

@inproceedings{muller00b_icslp,
  author={Ludek Müller and Filip Jurcicek and Lubos Smidl},
  title={{Rejection and key-phrase spottin techniques using a mumble model in a czech telephone dialog system}},
  year=2000,
  booktitle={Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000)},
  pages={vol. 1, 134-137}
}