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SIGMOD
2002
ACM
172views Database» more  SIGMOD 2002»
16 years 4 hour ago
Automating physical database design in a parallel database
Physical database design is important for query performance in a shared-nothing parallel database system, in which data is horizontally partitioned among multiple independent node...
Jun Rao, Chun Zhang, Nimrod Megiddo, Guy M. Lohman
PODS
2004
ACM
131views Database» more  PODS 2004»
15 years 12 months ago
On the Decidability of Containment of Recursive Datalog Queries - Preliminary report
The problem of deciding query containment has important applications in classical query optimization and heterogeneous database systems. Query containment is undecidable for unres...
Piero A. Bonatti
EXPERT
2008
77views more  EXPERT 2008»
14 years 12 months ago
Is a Semantic Web Agent a Knowledge-Savvy Agent?
nition of a common model that abstracted the shared knowledge (ontology); a formalism for representing such knowledge (Knowledge Interchange Format, or KIF); and a transport-indepe...
Valentina A. M. Tamma, Terry R. Payne
DBISP2P
2004
Springer
111views Database» more  DBISP2P 2004»
15 years 5 months ago
Processing and Optimization of Complex Queries in Schema-Based P2P-Networks
Peer-to-Peer infrastructures are emerging as one of the important data management infrastructures in the World Wide Web. So far, however, most work has focused on simple P2P networ...
Hadhami Dhraief, Alfons Kemper, Wolfgang Nejdl, Ch...
VLDB
1990
ACM
128views Database» more  VLDB 1990»
15 years 3 months ago
Advanced Query Processing in Object Bases Using Access Support Relations
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
Alfons Kemper, Guido Moerkotte