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 Reentrancy: Informal Idea Question Shouldn’t a person live together with his/her spouse Weiwei Sun Head-driven Phrase Structure Grammar I 27/61
Basic Idea Typed feature structure HPSG: First glance Reentrancy: Informal Idea ◮ Reentrant structure: one in which the attribute has a value that is another feature structure. ◮ Reentrancy is also called token identity or path equivalence predicate SUBJ P RED noun verb AGR agreement P ERS AGR NUM 3rd singular Structure sharing The main explanatory mechanism in HPSG is that of structuresharing, equating two features as having the exact same value. Weiwei Sun Head-driven Phrase Structure Grammar I 28/61
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Basic Idea Typed feature structure HPSG: First glance<br />
Reentrancy: Informal Idea<br />
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◮ Reentrant structure: one in which the attribute has a value<br />
that is another feature structure.<br />
◮ Reentrancy is also called token identity or path equivalence<br />
predicate<br />
SUBJ<br />
P RED<br />
noun<br />
verb<br />
AGR<br />
agreement<br />
P ERS<br />
AGR<br />
NUM<br />
3rd<br />
singular<br />
<strong>Structure</strong> sharing<br />
The main explanatory mechanism in HPSG is that of structuresharing,<br />
equating two features as having the exact same value.<br />
Weiwei Sun <strong>Head</strong>-<strong>driven</strong> <strong>Phrase</strong> <strong>Structure</strong> <strong>Grammar</strong> I 28/61
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