Universität Bielefeld - Sonderforschungsbereich 360
Sprachverarbeitung mit Combinatory Categorial Grammar:
Inkrementalität und Effizienz
Bernd Hildebrandt und Hans-Jürgen Eikmeyer
Abstract
In CCG type raising and composition rules can cause inefficient language processing.
Moreover, local ambiguities can arise, if the partially free constituent order of verb
arguments is dealt with by order specific lexical categories. We propose a set of derived
rules which avoid type raising in incremental processing. With these rules, a single
lexical category is used for the processing of every permutation of verb constituents. In
order to avoid overgeneralization, we introduce a system of indices which handles of the
verb location in German, namely initial, second or final position. Based upon such a
modified set of CCG rules we develop a cognitively motivated speech understanding system
for instructiong a two-arm-robot system in an assembly task. Modal verbs can be included
in the verbal instruction and in both the active and passive voice can be efficiently
processed.
Postscript-File (~ k)
Anke Weinberger, 1999-09-