Introduction of Feature Filtering Mechanisms into a Government-and-binding Parser

In this paper, we focus on the insertion of feature filtering into natural language parsers. First, we present a logic-programming modelling of feature filtering mechanisms. We give a logical-based specification, valid for different theories of features (including their evolution from the lexicon, expressed in terms of axioms, and including control tools). The logical-based language and our formalization are very general and independent from any parsing strategy. They permit to represent feature and control systems proposed by different linguistic theories. We propose an example of insertion of this feature filtering modelling into a Governmentand-Binding parser. GB is a very interesting theory for automatic natural language processing. The implementation of feature filtering within GB context leads to much more adequate and efficient parsers.