157 search results - page 2 / 32 » A Conjunctive Query Language for Description Logic Aboxes |
KR
2000
Springer
13 years 9 months ago
2000
Springer
We present a new tableaux calculus deciding the ABox consistency problem for the expressive description logic ALCNHR+ . Prominent language features of ALCNHR+ are number restricti...
CADE
2000
Springer
13 years 9 months ago
2000
Springer
Abstract. While there has been a great deal of work on the development of reasoning algorithms for expressive description logics, in most cases only Tbox reasoning is considered. I...
DLOG
2011
12 years 9 months ago
2011
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
WISE
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. Approximation has been identified as a potential way of reducing the complexity of logical reasoning. Here we explore approximation for speeding up instance retrieval in...
IJCAI
2007
13 years 6 months ago
2007
Conjunctive queries play an important role as an expressive query language for Description Logics (DLs). Although modern DLs usually provide for transitive roles, conjunctive quer...