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Saarland University Computer Science

A Declarative Grammar Formalism For Dependency Grammar

Ralph Debusmann

Master's Thesis, Computational Linguistics, Universit├Ąt des Saarlandes, 2001

We propose a formal characterization of variation in the syntactic realization of semantic arguments, using hierarchies of syntactic relations and thematic roles, and a mechanism of lexical inheritance to obtain valency frames from individual linking types. We embed the formalization in the new lexicalized, dependency-based grammar formalism of Topological Dependency Grammar (TDG) (Duchier/Debusmann 2001). We account for arguments that can be alternatively realized as a NP or a PP, and model thematic role alternations. We also treat auxiliary constructions, where the correspondance between syntactic and semantic argumenthood is indirect.

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