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COLING
1994
13 years 10 months ago
XTAG System - A Wide Coverage Grammar for English
This paper presents the XTAG system, a grammar development tool based on the Tree Adjoining Grammar (TAG) formalism that includes a wide-coverage syntactic grammar for English. Th...
Christine Doran, Dania Egedi, Beth Ann Hockey, Ban...
DLT
2006
13 years 10 months ago
Bag Context Tree Grammars
Bag context is a device for regulated rewriting in tree and string grammars. It represents context that is not part of the developing tree or string, but evolves on its own during ...
Frank Drewes, Christine du Toit, Sigrid Ewert, Bri...
ACL
1998
13 years 10 months ago
Finite-state Approximation of Constraint-based Grammars using Left-corner Grammar Transforms
This paper describes how to construct a finite-state machine (FSM) approximating a 'unification-based' grammar using a left-corner grammar transform. The approximation i...
Mark Johnson
EMNLP
2010
13 years 6 months ago
Unsupervised Induction of Tree Substitution Grammars for Dependency Parsing
Inducing a grammar directly from text is one of the oldest and most challenging tasks in Computational Linguistics. Significant progress has been made for inducing dependency gram...
Phil Blunsom, Trevor Cohn
ACL
2010
13 years 6 months ago
The Importance of Rule Restrictions in CCG
Combinatory Categorial Grammar (CCG) is generally construed as a fully lexicalized formalism, where all grammars use one and the same universal set of rules, and crosslinguistic v...
Marco Kuhlmann, Alexander Koller, Giorgio Satta