Head-driven Phrase Structure Grammar I
Head-driven Phrase Structure Grammar I
Head-driven Phrase Structure Grammar I
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Basic Idea Typed feature structure HPSG: First glance<br />
Signature<br />
These feature structures are<br />
◮ Totally well-formed: every node has all the features<br />
appropriate for its type and each attribute has an appropriate<br />
value<br />
◮ Type-resolved: every node is of a maximally specific type<br />
◮ Sometimes partially described: underspecifying information<br />
Linguistic description<br />
◮ Linguistic theories are described using AVMs.<br />
◮ A set of description statements comprises the constraints:<br />
◮ What are the admissible linguistic objects<br />
⇔ there is a corresponding well-formed TFS satisfying all<br />
the constraints<br />
Weiwei Sun <strong>Head</strong>-<strong>driven</strong> <strong>Phrase</strong> <strong>Structure</strong> <strong>Grammar</strong> I 52/61
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