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» Lambek Grammars Are Context Free
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EJC
2007
13 years 9 months ago
Comparing the Use of Feature Structures in Nativism and in Database Semantics
Linguistics has always been a field with a great diversity of schools and sub-schools. This has naturally led to the question of whether different grammatical analyses of the sam...
Roland Hausser
ACL
1992
13 years 8 months ago
Recognition of Linear Context-Free Rewriting Systems
The class of linear context-free rewriting systems has been introduced as a generalization of a class of grammar formalisms known as mildly context-sensitive. The recognition prob...
Giorgio Satta
COLING
2010
13 years 2 months ago
Data-Driven Parsing with Probabilistic Linear Context-Free Rewriting Systems
This paper presents a first efficient implementation of a weighted deductive CYK parser for Probabilistic Linear ContextFree Rewriting Systems (PLCFRS), together with context-summ...
Laura Kallmeyer, Wolfgang Maier
CALCO
2005
Springer
126views Mathematics» more  CALCO 2005»
14 years 1 months ago
Context-Free Languages via Coalgebraic Trace Semantics
In this paper we identify context-free grammars as coalgebras. To obtain the associated context-free languages (consisting of only finite-length strings) we introduce a general a...
Ichiro Hasuo, Bart Jacobs
ACL
1997
13 years 9 months ago
Fast Context-Free Parsing Requires Fast Boolean Matrix Multiplication
Valiant showed that Boolean matrix multiplication (BMM) can be used for CFG parsing. We prove a dual result: CFG parsers running in time O([Gl[w[3-e) on a grammar G and a string w...
Lillian Lee