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» Location-aware Query Processing and Optimization
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WMASH
2004
ACM
14 years 27 days ago
LOCATOR: location estimation system For wireless LANs
With the wide spread growth of mobile computing devices and local area wireless networks, wireless network providers have started to target the users with value-added services bas...
Ankur Agiwal, Parakram Khandpur, Huzur Saran
DASFAA
2004
IEEE
95views Database» more  DASFAA 2004»
13 years 11 months ago
On Incorporating Iceberg Queries in Query Processors
Iceberg queries are a special case of SQL queries involving GROUP BY and HAVING clauses, wherein the answer set is small relative to the database size. We present here a performanc...
Krishna P. Leela, Pankaj M. Tolani, Jayant R. Hari...
SIGMOD
2001
ACM
221views Database» more  SIGMOD 2001»
14 years 7 months ago
Adaptable Query Optimization and Evaluation in Temporal Middleware
Time-referenced data are pervasive in most real-world databases. Recent advances in temporal query languages show that such database applications may benefit substantially from bu...
Giedrius Slivinskas, Christian S. Jensen, Richard ...
SBACPAD
2004
IEEE
144views Hardware» more  SBACPAD 2004»
13 years 8 months ago
Improving Server Performance on Transaction Processing Workloads by Enhanced Data Placement
Modern servers access large volumes of data while running commercial workloads. The data is typically spread among several storage devices (e.g. disks). Carefully placing the data...
Juan Rubio, Charles Lefurgy, Lizy Kurian John
SIGMOD
2005
ACM
164views Database» more  SIGMOD 2005»
14 years 7 months ago
RankSQL: Query Algebra and Optimization for Relational Top-k Queries
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas...