Implementing semantic frames as typed feature structures with XMG


Timm Lichte, University of Düsseldorf, Germany
Simon Petitjean, University of Orléans, France

Abstract


This work presents results on the integration of frame-based representations into the framework of eXtensible MetaGrammar (XMG). Originally XMG allowed for the description of tree-based syntactic structures and underspecified representations of predicate-logical formulae, but the representation of frames as a sort of typed feature structure, particularly type unification, was not supported. Therefore, we introduce an extension that is capable of handling frame representations directly by means of a novel <frame>-dimension. The aim is not only to make possible a straightforward specification of frame descriptions, but also to offer various ways to specify constraints on types, be it as a contiguous type hierarchy or a loose set of feature structure constraints. The presented extensions to XMG are fully operational in a new prototype.

Keywords


grammar engineering, frame semantics, typed feature structures

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DOI: http://dx.doi.org/10.15398/jlm.v3i1.96

ISSN of the paper edition: 2299-856X