4th International Conference on Spoken Language Processing

Philadelphia, PA, USA
October 3-6, 1996

Learning to Parse Spontaneous Speech

Finn Dag Buo, Alex Waibel

Interactive Systems Laboratories, University of Karlsruhe (Germany) / Carnegie Mellon University (USA)

We describe and experimentally evaluate a system, FeasPar, that learns parsing spontaneous speech. To train and run FeasPar (Feature Structure Parser), only limited handmodeled knowledge is required. The FeasPar architecture consists of neural networks and a search. The networks spilt the incoming sentence into chunks, which are labeled with feature values and chunk relations. Then, the search finds the most probable and consistent feature structure. FeasPar is trained, tested and evaluated with the Spontaneous Scheduling Task, and compared with two samples of a handmodeled GLR* parser, developed for 4 months and 2 years, respectively. The handmodeling effort for FeasPar is 2 weeks. FeasPar performes better than the GLR* parser developed 4 months in all six comparisons that are made and has a similar performance as the GLR* parser developed for 2 years.

Full Paper

Bibliographic reference.  Buo, Finn Dag / Waibel, Alex (1996): "Learning to parse spontaneous speech", In ICSLP-1996, 1153-1156.