HPSG
Head-Driven Phrase Structure Grammar (HPSG) is a constraint-based grammatical framework developed by Carl Pollard and Ivan Sag in 1987. HPSG represents linguistic information (phonological, syntactic, semantic) in typed feature structures and derives well-formed expressions through constraints on these structures. Unlike movement-based theories, HPSG models word order and long-distance dependencies through feature sharing and principles of grammar. It has been extensively applied to modeling diverse language phenomena and remains influential in computational linguistics.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Pollard, C., & Sag, I. A. (1994). Head-Driven Phrase Structure Grammar. Chicago: University of Chicago Press. · URL
- Sag, I. A., Wasow, T., & Bender, E. M. (2003). Syntactic Theory: A Formal Introduction (2nd ed.). Stanford, CA: CSLI Publications. · URL
- Borsley, R. D. (2011). A Grammar of Welsh. Berlin: De Gruyter. · URL
Curated claims
Claims persisted in the evidence ledger, each with its own assessment.
This view does not invent a claim assessment when the ledger has none.
Related methods
Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.