ISCA Archive Eurospeech 1997
ISCA Archive Eurospeech 1997

What's in a word graph evaluation and enhancement of word lattices?

Jan W. Amtrup, Henrik Heine, Uwe Jost

During the last few years, word graphs have been gaining increasing interest within the speech community as the primary interface between speech recognizers and language processing modules. Both development and evaluation of graph-producing speech decoders require generally accepted measures of word graph quality. While the notion of recognition accuracy can easily be extended to word graphs, a meaningful measure of word graph size has not yet surfaced. We argue, that the number of derivation steps a theoretical parser would need to process all unique subpaths in a graph could provide a measure that is both application oriented enough to be meaningful and general enough to allow a useful comparison of word recognizers across different applications.


doi: 10.21437/Eurospeech.1997-672

Cite as: Amtrup, J.W., Heine, H., Jost, U. (1997) What's in a word graph evaluation and enhancement of word lattices? Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997), 2663-2666, doi: 10.21437/Eurospeech.1997-672

@inproceedings{amtrup97_eurospeech,
  author={Jan W. Amtrup and Henrik Heine and Uwe Jost},
  title={{What's in a word graph evaluation and enhancement of word lattices?}},
  year=1997,
  booktitle={Proc. 5th European Conference on Speech Communication and Technology (Eurospeech 1997)},
  pages={2663--2666},
  doi={10.21437/Eurospeech.1997-672},
  issn={1018-4074}
}