Routledge Dictionary of Language and Linguistics
A grammatical formalism in generative grammar from the family of unification grammars. PATR was created and first used by Shieber as a computer language for the development of unification grammar. Context-free phrase structures and feature structures are kept distinct in the syntactic representations and rules. PATR is the simplest of the formalisms in unification grammar and is often used.
References
Hirsch, S. 1988. P-PATR: a compiler for Unificationbased Grammars. In V.Dahl and P.Saint-Dizier (eds), Natural language understanding and logic programming. Amsterdam. 63–78.
Karttunen, L. 1986. D-PATR: a development environment for Unification-based Grammars.
COLING 86. 74–80.
Shieber, S.M. 1984. The design of a computer language for linguistic information. COLING 84. 362–6.
——et al. 1983. The formalism and implementation of PATR-II. Research on interactive acquisition and use of knowledge. SRI International. Menlo Park, CA. 39–79.
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