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CLEF
2005
Springer
14 years 1 months ago
A Logic Programming Based Approach to QA@CLEF05 Track
Abstract. In this paper the methodology followed to build a questionanswering system for the Portuguese language is described. The system modules are built using computational ling...
Paulo Quaresma, Irene Pimenta Rodrigues
NMR
2004
Springer
14 years 1 months ago
Semantics of disjunctive programs with monotone aggregates - an operator-based approach
All major semantics of normal logic programs and normal logic programs with aggregates can be described as fixpoints of the one-step provability operator or of operators that can...
Nikolay Pelov, Miroslaw Truszczynski
ENTCS
2008
120views more  ENTCS 2008»
13 years 8 months ago
Reasoning about B+ Trees with Operational Semantics and Separation Logic
The B+ tree is an ordered tree structure with a fringe list. It is the most widely used data structure for data organisation and searching in database systems specifically, and, p...
Alan P. Sexton, Hayo Thielecke
LICS
2009
IEEE
14 years 2 months ago
Substructural Operational Semantics as Ordered Logic Programming
We describe a substructural logic with ordered, linear, and persistent propositions and then endow a fragment with a committed choice forward-chaining operational interpretation. ...
Frank Pfenning, Robert J. Simmons
ENTCS
2007
161views more  ENTCS 2007»
13 years 7 months ago
Bialgebraic Methods in Structural Operational Semantics: Invited Talk
Bialgebraic semantics, invented a decade ago by Turi and Plotkin, is an approach to formal reasoning about well-behaved structural operational specifications. An extension of alg...
Bartek Klin