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Conference Papers Year : 2022

Simulating Feature Structures with Simple Types

Abstract

Feature structures have been several times considered to enrich categorial grammars in order to build fine-grained grammars. Most attempts to unify both frameworks either model categorial types as feature structures or add feature structures on top of categorial types. We pursue a different approach: using feature structure as categorial atomic types. In this article, we present a procedure to create, from a simplified HPSG grammar, an equivalent abstract categorial grammar (ACG). We represent a feature structure by the enumeration of its totally well-typed upper bounds, so that unification can be simulated as intersection. We implement this idea as a meta-ACG preprocessor.
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hal-03943681 , version 1 (17-01-2023)

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Valentin D. Richard. Simulating Feature Structures with Simple Types. Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies: Student Research Workshop, Jul 2022, Hybrid: Seattle, United States. pp.113-122, ⟨10.18653/v1/2022.naacl-srw.15⟩. ⟨hal-03943681⟩
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