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» Improving verbose queries using subset distribution
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DASFAA
2008
IEEE
106views Database» more  DASFAA 2008»
14 years 2 months ago
Flood Little, Cache More: Effective Result-Reuse in P2P IR Systems
State-of-the-art Peer-to-Peer Information Retrieval (P2P IR) systems suffer from their lack of response time guarantee especially with scale. To address this issue, a number of tec...
Christian Zimmer, Srikanta J. Bedathur, Gerhard We...
ACNS
2006
Springer
138views Cryptology» more  ACNS 2006»
13 years 11 months ago
Syntax-Driven Private Evaluation of Quantified Membership Queries
Abstract. Membership queries are basic predicate operations that apply to datasets. Quantifications of such queries express global properties between datasets, including subset inc...
Aggelos Kiayias, Antonina Mitrofanova
PVLDB
2010
225views more  PVLDB 2010»
13 years 2 months ago
Efficient Processing of Top-k Spatial Preference Queries
Top-k spatial preference queries return a ranked set of the k best data objects based on the scores of feature objects in their spatial neighborhood. Despite the wide range of loc...
João B. Rocha-Junior, Akrivi Vlachou, Chris...
ESWS
2011
Springer
12 years 11 months ago
Optimizing Query Shortcuts in RDF Databases
The emergence of the Semantic Web has led to the creation of large semantic knowledge bases, often in the form of RDF databases. Improving the performance of RDF databases necessit...
Vicky Dritsou, Panos Constantopoulos, Antonios Del...
OWLED
2008
13 years 9 months ago
Owlgres: A Scalable OWL Reasoner
Abstract. We present Owlgres, a DL-Lite reasoner implementation written for PostgreSQL, a mature open source database. Owlgres is an OWL reasoner that provides consistency checking...
Markus Stocker, Michael Smith