Sciweavers

736 search results - page 12 / 148
» Answering Imprecise Queries over Web Databases
Sort
View
CORR
2011
Springer
185views Education» more  CORR 2011»
13 years 2 months ago
Sound and Complete Query Answering in Intensional P2P Data Integration
Contemporary use of the term ’intension’ derives from the traditional logical doctrine that an idea has both an extension and an intension. In this paper we introduce an intens...
Zoran Majkic
WWW
2004
ACM
14 years 8 months ago
Providing ranked relevant results for web database queries
Often Web database users experience difficulty in articulating their needs using a precise query. Providing ranked set of possible answers would benefit such users. We propose to ...
Ullas Nambiar, Subbarao Kambhampati
SAC
2006
ACM
14 years 1 months ago
Ontology-based integration for relational databases
In this paper, we show that representation and reasoning techniques used in traditional knowledge engineering and the emerging Semantic Web can play an important role for heteroge...
Dejing Dou, Paea LePendu
CIKM
2005
Springer
14 years 1 months ago
Concept-based interactive query expansion
Despite the recent advances in search quality, the fast increase in the size of the Web collection has introduced new challenges for Web ranking algorithms. In fact, there are sti...
Bruno M. Fonseca, Paulo Braz Golgher, Bruno P&ocir...
PODS
2009
ACM
170views Database» more  PODS 2009»
14 years 8 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...