Adapting HPSG-to-TAG compilation to wide-coverage grammars.
Tilman Becker, Patrice Lopez · 2000
The HPSG-to-TAG compilation algorithm proposed in (Kasper et al., 1995) has been the basis of large scale experiments in VerbMobil, a speech--to--speech dialouge translation system in the scheduling and travel domain. The results here refer to the English HPSG grammar developed at CSLI. Several non-trivial theoretical problems have been discovered by the practical application of this algorithm. This paper presents these experiments, the main shortcomings of the initial algorithm and some of the solutions we have developed in order to use the resulting compiled LTAG grammar in a real world system.