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» Lambek Grammars Are Context Free
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CPAIOR
2009
Springer
14 years 2 months ago
The Polytope of Context-Free Grammar Constraints
Context-free grammar constraints enforce that a sequence of variables forms a word in a language defined by a context-free grammar. The constraint has received a lot of attention ...
Gilles Pesant, Claude-Guy Quimper, Louis-Martin Ro...
ICALP
2007
Springer
14 years 1 months ago
Conservative Ambiguity Detection in Context-Free Grammars
The ability to detect ambiguities in context-free grammars is vital for their use in several fields, but the problem is undecidable in the general case. We present a safe, conser...
Sylvain Schmitz
CORR
1999
Springer
82views Education» more  CORR 1999»
13 years 7 months ago
Inside-Outside Estimation of a Lexicalized PCFG for German
The paper describes an extensive experiment in inside-outside estimation of a lexicalized probabilistic context free grammar for German verbnal clauses. Grammar and formalism feat...
Franz Beil, Glenn Carroll, Detlef Prescher, Stefan...
ACL
1997
13 years 9 months ago
Approximating Context-Free Grammars with a Finite-State Calculus
Although adequate models of human language for syntactic analysis and semantic interpretation are of at least contextfree complexity, for applications such as speech processing in...
Edmund Grimley-Evans
CSL
2010
Springer
13 years 8 months ago
A Formalisation of the Normal Forms of Context-Free Grammars in HOL4
We describe the formalisation of the normal forms of context-free grammars (CFGs) using the HOL4 theorem prover. These straightforward pen and paper proofs easily understood from t...
Aditi Barthwal, Michael Norrish