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AAAI
2008
15 years 4 days ago
Worst-case Optimal Conjunctive Query Answering for an Expressive Description Logic without Inverses
Answering conjunctive queries (CQs) has been recognized as a key task for the usage of Description Logics (DLs) in a number of applications, and has thus been studied by many auth...
Magdalena Ortiz, Mantas Simkus, Thomas Eiter
JAIR
2007
146views more  JAIR 2007»
14 years 9 months ago
Reasoning with Very Expressive Fuzzy Description Logics
It is widely recognized today that the management of imprecision and vagueness will yield more intelligent and realistic knowledge-based applications. Description Logics (DLs) are...
Giorgos Stoilos, Giorgos B. Stamou, Jeff Z. Pan, V...
DLOG
2009
14 years 7 months ago
A Framework for Reasoning with Expressive Continuous Fuzzy Description Logics
In the current paper we study the reasoning problem for fuzzy SI (f-SI) under arbitrary continuous fuzzy operators. Our work can be seen as an extension of previous works that stud...
Giorgos Stoilos, Giorgos B. Stamou
AGP
1997
IEEE
15 years 2 months ago
Datalog and Description Logics: Expressive Power
Marco Cadoli, Luigi Palopoli, Maurizio Lenzerini
JAR
2008
77views more  JAR 2008»
14 years 9 months ago
Data Complexity of Query Answering in Expressive Description Logics via Tableaux
Magdalena Ortiz, Diego Calvanese, Thomas Eiter