49 search results - page 3 / 10 » Query Answering over SROIQ Knowledge Bases with SPARQL |
ICDM
2010
IEEE
13 years 3 months ago
2010
IEEE
-- In this paper, we put forward our approach for answering aggregated queries over imprecise data using domain specific taxonomies. A new concept we call the weighted hierarchical...
SEMWEB
2010
Springer
13 years 3 months ago
2010
Springer
We develop query relaxation techniques for regular path queries and combine them with query approximation in order to support flexible querying of RDF data when the user lacks know...
DLOG
2007
13 years 7 months ago
2007
Abstract. Fuzzy Description Logics (f-DLs) have been proposed as formalisms capable of capturing and reasoning about imprecise and vague knowledge. The last years, research in Desc...
DEXA
2007
Springer
13 years 11 months ago
2007
Springer
The retrieval problem is one of the main reasoning tasks for knowledge base systems. Given a knowledge base K and a concept C, the retrieval problem consists of finding all indivi...
IJCAI
2007
13 years 7 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...