PATR-II
Encyclopedia
PATR-II is a linguistic formalism used in computational linguistics
, developed by Stuart M. Shieber. It uses context-free grammar
rules and feature constraints
on these rules.
Computational linguistics
Computational linguistics is an interdisciplinary field dealing with the statistical or rule-based modeling of natural language from a computational perspective....
, developed by Stuart M. Shieber. It uses context-free grammar
Context-free grammar
In formal language theory, a context-free grammar is a formal grammar in which every production rule is of the formwhere V is a single nonterminal symbol, and w is a string of terminals and/or nonterminals ....
rules and feature constraints
Feature structure
In phrase structure grammars, such as generalised phrase structure grammar, head-driven phrase structure grammar and lexical functional grammar, a feature structure is essentially a set of attribute-value pairs. For example the attribute named number might have the value singular. The value of an...
on these rules.
External links
- PC-PATR, an implementation of PATR-II for PC and Unix systems.