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OFAI-TR-93-02 ( 46kB g-zipped PostScript file)

CLP based HPSG Parsing

Johannes Matiasek

We describe a system for principle based parsing of HPSG employing constraint logic programming techniques. Typed features structures are implemented as constraints on PROLOG variables and are instantiated in a lazy fashion. Grammar principles as well as relational constraints are stated in a declarative way by means of conditional constraints on feature structures. The procedural interpretation given to these conditional constraints together with the data driven delay mechanism implemented yields efficient parsing behavior.

Citation: Matiasek J.: CLP based HPSG Parsing, Austrian Research Institute for Artificial Intelligence, Vienna, TR-93-02, 1993.