Integrating syntactic and prosodic information for the efficient detection of empty categories

Authors:
Anton Batliner;Anke Feldhaus;Stefan Geißler;Andreas Kießling;Tibor Kiss;Ralf Kompe;Elmar Nöth
Affiliations:
Institut f. Deutsche Philologic, München;Inst. f. Logik and Linguistik, Heidelberg;Inst. f. Logik and Linguistik, Heidelberg;Lehrstuhl f. Mustererkennung, Erlangen;Inst. f. Logik and Linguistik, Heidelberg;Lehrstuhl f. Mustererkennung, Erlangen;Lehrstuhl f. Mustererkennung, Erlangen
Venue:
COLING '96 Proceedings of the 16th conference on Computational linguistics - Volume 1
Year:
1996

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Abstract

We describe a number of experiments that demonstrate the usefulness of prosodic information for a processing module which parses spoken utterances with a feature-based grammar employing empty categories. We show that by requiring certain prosodic properties from those positions in the input, where the presence of an empty category has to be hypothesized, a derivation can be accomplished more efficiently. The approach has been implemented in the machine translation project VERBMOBIL and results in a significant reduction of the work-load for the parser.