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» On the Complexity of Fragments of Modal Logics
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CSL
2008
Springer
13 years 9 months ago
On the Almighty Wand
We investigate decidability, complexity and expressive power issues for (first-order) separation logic with one record field (herein called SL) and its fragments. SL can specify pr...
Rémi Brochenin, Stéphane Demri, &Eac...
DLOG
2009
13 years 5 months ago
A Matter of Principles: Towards the Largest DLP Possible
Abstract. Description Logic Programs (DLP) have been described as a description logic (DL) that is in the "expressive intersection" of DL and datalog. This is a very weak...
Markus Krötzsch, Sebastian Rudolph
SEBD
2007
121views Database» more  SEBD 2007»
13 years 9 months ago
Query Answering in Expressive Variants of DL-Lite
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large am...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
DAM
2007
83views more  DAM 2007»
13 years 7 months ago
The proof theoretic strength of the Steinitz exchange theorem
We show that the logical theory QLA proves the Cayley–Hamilton theorem from the Steinitz exchange theorem together with a strengthening of the linear independence principle. Sin...
Michael Soltys
ICDT
2001
ACM
131views Database» more  ICDT 2001»
14 years 3 days ago
Query Evaluation via Tree-Decompositions
A number of efficient methods for evaluating first-order and monadic-second order queries on finite relational structures are based on tree-decompositions of structures or quer...
Jörg Flum, Markus Frick, Martin Grohe