6 citations · 12 across the 10 of their papers we have counts for
4 papers · 1 filter
Encoding Lexicalized Tree Adjoining Grammars with a Nonmonotonic Inheritance Hierarchy
Roger Evans, Gerald Gazdar, David Weir
This paper shows how DATR, a widely used formal language for lexical knowledge representation, can be used to define an LTAG lexicon as an inheritance hierarchy with internal lexic…
D-Tree Grammars
Owen Rambow, K. Vijay-Shanker, David Weir
DTG are designed to share some of the advantages of TAG while overcoming some of its limitations. DTG involve two composition operations called subsertion and sister-adjunction. Th…
A Tractable Extension of Linear Indexed Grammars
Bill Keller, David Weir
It has been shown that Linear Indexed Grammars can be processed in polynomial time by exploiting constraints which make possible the extensive use of structure-sharing. This paper…
Using default inheritance to describe LTAG
Roger Evans, Gerald Gazdar, David Weir
We present the results of an investigation into how the set of elementary trees of a Lexicalized Tree Adjoining Grammar can be represented in the lexical knowledge representation l…