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LICS
2010
IEEE
13 years 8 months ago
2010
IEEE
Abstract--This paper summarizes results on a recently introduced family of Datalog-based languages, called Datalog+/-, which is a new framework for tractable ontology querying, and...
LICS
2010
IEEE
13 years 8 months ago
2010
IEEE
We prove that fixed-point logic with counting captures polynomial time on all classes of graphs with excluded minors. That is, for every class C of graphs such that some graph H is...
LICS
2010
IEEE
13 years 8 months ago
2010
IEEE
The universal-algebraic approach has proved a powerful tool in the study of the computational complexity of constraint satisfaction problems (CSPs). This approach has previously b...
LICS
2010
IEEE
13 years 9 months ago
2010
IEEE
Psi-calculi extend the pi-calculus with nominal datatypes to represent data, communication channels, and logics for facts and conditions. This general framework admits highly expr...
LICS
2010
IEEE
13 years 9 months ago
2010
IEEE
We define tree automata with global constraints (TAGC), generalizing the well-known class of tree automata with global equality and disequality constraints [14] (TAGED). TAGC can...