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» Expressiveness and complexity of graph logic
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WG
1998
Springer
13 years 9 months ago
Linear Time Solvable Optimization Problems on Graphs of Bounded Clique Width
Hierarchical decompositions of graphs are interesting for algorithmic purposes. There are several types of hierarchical decompositions. Tree decompositions are the best known ones....
Bruno Courcelle, Johann A. Makowsky, Udi Rotics
ECSQARU
2009
Springer
13 years 12 months ago
An Algorithm for Generating Arguments in Classical Predicate Logic
Abstract. There are a number of frameworks for modelling argumentation in logic. They incorporate a formal representation of individual arguments and techniques for comparing conï¬...
Vasiliki Efstathiou, Anthony Hunter
CONCUR
2007
Springer
13 years 11 months ago
Linear Time Logics Around PSL: Complexity, Expressiveness, and a Little Bit of Succinctness
Abstract. We consider linear time temporal logic enriched with semiextended regular expressions through various operators that have been proposed in the literature, in particular i...
Martin Lange
CADE
2008
Springer
14 years 5 months ago
The Complexity of Conjunctive Query Answering in Expressive Description Logics
Abstract. Conjunctive query answering plays a prominent role in applications of description logics (DLs) that involve instance data, but its exact complexity was a long-standing op...
Carsten Lutz
AAAI
2006
13 years 6 months ago
Characterizing Data Complexity for Conjunctive Query Answering in Expressive Description Logics
Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly ...
Magdalena Ortiz, Diego Calvanese, Thomas Eiter