Head-driven Phrase Structure Grammar I
Head-driven Phrase Structure Grammar I Head-driven Phrase Structure Grammar I
Basic Idea Typed feature structure HPSG: First glance Developing a feature structure based syntactic theory Type ⇒ Typed feature structure ◮ One of the first things in developing a theory of grammars is to classify linguistic entities. ◮ Paradigmatic relations: We cluster “good” feature structures into various types. ◮ Syntagmatic relations: We combine “good” feature structures according to several general principles. ◮ HPSG employs Typed feature structure (TFS), a mathematical device, to express symbolic and structured constraints of linguistic objects. 1. Types are associated with feature-value constraints expressed as TFS’s. 2. Linguistic objects “of the same type” share its feature-value constraints. 3. A concrete linguistic object may define other feature-value constraints, which are compatible with its type. Weiwei Sun Head-driven Phrase Structure Grammar I 13/61
Basic Idea Typed feature structure HPSG: First glance Reference HPSG is a syntactic theory that follows the lexicalist framework. 1. (Sag and Wasow, 1999) ⇒ (Sag, Wasow and Bender 2003): ◮ Syntactic Theory: A Formal Introduction 2. (Pollard and Sag, 1994): ◮ Head-Driven Phrase Structure Grammar HPSG describes linguistic structures with typed feature structures ◮ (Carpenter, 1992): ◮ The Logic of Typed Feature Structures ◮ (Copestake, 2000): ◮ Appendix: Definitions of typed feature structures. Weiwei Sun Head-driven Phrase Structure Grammar I 14/61
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Basic Idea Typed feature structure HPSG: First glance<br />
Reference<br />
HPSG is a syntactic theory that follows the lexicalist framework.<br />
1. (Sag and Wasow, 1999) ⇒ (Sag, Wasow and Bender<br />
2003):<br />
◮ Syntactic Theory: A Formal Introduction<br />
2. (Pollard and Sag, 1994):<br />
◮ <strong>Head</strong>-Driven <strong>Phrase</strong> <strong>Structure</strong> <strong>Grammar</strong><br />
HPSG describes linguistic structures with typed feature structures<br />
◮ (Carpenter, 1992):<br />
◮ The Logic of Typed Feature <strong>Structure</strong>s<br />
◮ (Copestake, 2000):<br />
◮ Appendix: Definitions of typed feature structures.<br />
Weiwei Sun <strong>Head</strong>-<strong>driven</strong> <strong>Phrase</strong> <strong>Structure</strong> <strong>Grammar</strong> I 14/61
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