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» GUC-Secure Join Operator in Distributed Relational Database
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SSDBM
2003
IEEE
196views Database» more  SSDBM 2003»
14 years 1 months ago
Stream Window Join: Tracking Moving Objects in Sensor-Network Databases
The widespread use of sensor networks presents revolutionary opportunities for life and environmental science applications. Many of these applications involve continuous queries t...
Moustafa A. Hammad, Walid G. Aref, Ahmed K. Elmaga...
ICDE
2008
IEEE
108views Database» more  ICDE 2008»
14 years 10 months ago
Self-Join Size Estimation in Large-scale Distributed Data Systems
In this work we tackle the open problem of self-join size (SJS) estimation in a large-scale Distributed Data System, where tuples of a relation are distributed over data nodes whic...
Theoni Pitoura, Peter Triantafillou
ICDE
2008
IEEE
215views Database» more  ICDE 2008»
14 years 10 months ago
Fast and Simple Relational Processing of Uncertain Data
This paper introduces U-relations, a succinct and purely relational representation system for uncertain databases. U-relations support attribute-level uncertainty using vertical pa...
Lyublena Antova, Thomas Jansen, Christoph Koch, Da...
TOOLS
1999
IEEE
14 years 26 days ago
Optimizing Object-Oriented Collection Join Queries through Path Traversals
Path traversals have been recognized as one of the strengths of object-oriented query processing as object retrieval can be carried out through pointer navigation. Apart from path...
David Taniar
SIGMOD
1996
ACM
97views Database» more  SIGMOD 1996»
14 years 22 days ago
Bifocal Sampling for Skew-Resistant Join Size Estimation
This paper introduces bifocal sampling, a new technique for estimating the size of an equi-join of two relations. Bifocal sampling classi es tuples in each relation into two group...
Sumit Ganguly, Phillip B. Gibbons, Yossi Matias, A...