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 HPSG: Assumptions Two assumptions 1. Languages are systems of sorts of linguistic objects at avariety of levels of abstraction. ◮ Grammars assign structural descriptions and semantic interpretations to linguistic objects. 2. Grammars are best represented as process-neutral systems of declarative constraints. ◮ TG defines contraints in terms of operations on objects (movements). ◮ TAG defines contraints in terms of adjunctions. Weiwei Sun Head-driven Phrase Structure Grammar I 11/61
Basic Idea Typed feature structure HPSG: First glance Developing a feature structure based syntactic theory Questions Define feature structures in a linguistic way ◮ What kinds of features go together ◮ What values are appropriate for each particular feature Manipulate feature structures in a systematic way ◮ How to specify which feature structures are well-formed ◮ How to combine small feature structures to larger ones Mathematically sound model is employed to guarantee that rich features can be widely defined for modeling various linguistic phenomena. Weiwei Sun Head-driven Phrase Structure Grammar I 12/61
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Basic Idea Typed feature structure HPSG: First glance<br />
Developing a feature structure based syntactic theory<br />
Questions<br />
Define feature structures in a linguistic way<br />
◮ What kinds of features go together<br />
◮ What values are appropriate for each particular feature<br />
Manipulate feature structures in a systematic way<br />
◮ How to specify which feature structures are well-formed<br />
◮ How to combine small feature structures to larger ones<br />
Mathematically sound model is employed to guarantee that rich<br />
features can be widely defined for modeling various linguistic<br />
phenomena.<br />
Weiwei Sun <strong>Head</strong>-<strong>driven</strong> <strong>Phrase</strong> <strong>Structure</strong> <strong>Grammar</strong> I 12/61
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