27 search results - page 2 / 6 » A Black-Box Approach to Query Cardinality Estimation |
SIGMOD
2005
ACM
14 years 11 months ago
2005
ACM
Research on query optimization has focused almost exclusively on reducing query execution time, while important qualities such as consistency and predictability have largely been ...
WWW
2007
ACM
14 years 11 months ago
2007
ACM
Most RDF query languages allow for graph structure search through a conjunction of triples which is typically processed using join operations. A key factor in optimizing joins is ...
PVLDB
2008
13 years 10 months ago
2008
Though inevitable for effective cost-based query rewriting, the derivation of meaningful cardinality estimates has remained a notoriously hard problem in the context of XQuery. By...
ICDE
2006
IEEE
15 years 6 days ago
2006
IEEE
Incorporating the skyline operator inside the relational engine requires solving the cardinality estimation and the cost estimation problem, hitherto unaddressed. We propose robus...
GLOBECOM
2009
IEEE
14 years 5 months ago
2009
IEEE
— In this paper, we study the anonymous cardinality estimation problem in radio frequency identification (RFID) systems. To preserve privacy and anonymity, each tag only transmi...