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PODS
2009
ACM
170views Database» more  PODS 2009»
14 years 11 months ago
A general datalog-based framework for tractable query answering over ontologies
d Abstract) Andrea Cal`i2,1 , Georg Gottlob1,2 , and Thomas Lukasiewicz1, 1 Computing Laboratory, University of Oxford, UK firstname.lastname@comlab.ox.ac.uk 2 Oxford-Man Institute...
Andrea Calì, Georg Gottlob, Thomas Lukasiew...
WWW
2008
ACM
14 years 11 months ago
Scalable querying services over fuzzy ontologies
Fuzzy ontologies are envisioned to be useful in the Semantic Web. Existing fuzzy ontology reasoners are not scalable enough to handle the scale of data that the Web provides. In t...
Jeff Z. Pan, Giorgos B. Stamou, Giorgos Stoilos, S...
ICDE
2008
IEEE
119views Database» more  ICDE 2008»
14 years 5 months ago
NGS: a framework for multi-domain query answering
— If we consider a query involving multiple domains, such as “find all database conferences held within six months in locations whose seasonal average temperature is 28◦ C a...
Daniele Braga, Diego Calvanese, Alessandro Campi, ...
PVLDB
2010
151views more  PVLDB 2010»
13 years 9 months ago
Advanced Processing for Ontological Queries
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
Andrea Calì, Georg Gottlob, Andreas Pieris
KRDB
2003
111views Database» more  KRDB 2003»
14 years 11 days ago
A Framework for Answering Queries using Multiple Representation and Inference Techniques
The Polylog framework is designed to provide a language for efficiently automating complex queries of information represented in multiple formats. A Polylog program contains a set...
Nicholas L. Cassimatis