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» Query operations for moving objects database systems
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151
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ICDE
2011
IEEE
274views Database» more  ICDE 2011»
14 years 6 months ago
SQPR: Stream query planning with reuse
—When users submit new queries to a distributed stream processing system (DSPS), a query planner must allocate physical resources, such as CPU cores, memory and network bandwidth...
Evangelia Kalyvianaki, Wolfram Wiesemann, Quang Hi...
109
Voted
EDOC
2003
IEEE
15 years 8 months ago
MQL: a Powerful Extension to OCL for MOF Queries
The Meta-Object Facility (MOF) provides a standardised framework for object-oriented models. An instance of a MOF model contains objects and links whose interfaces are entirely de...
David Hearnden, Kerry Raymond, Jim Steel
DASFAA
2010
IEEE
190views Database» more  DASFAA 2010»
15 years 6 months ago
k-Selection Query over Uncertain Data
This paper studies a new query on uncertain data, called k-selection query. Given an uncertain dataset of N objects, where each object is associated with a preference score and a p...
Xingjie Liu, Mao Ye, Jianliang Xu, Yuan Tian, Wang...
ICDE
2007
IEEE
220views Database» more  ICDE 2007»
16 years 4 months ago
Structural Selectivity Estimation for XML Documents
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
Damien K. Fisher, Sebastian Maneth
153
Voted
ADBIS
2000
Springer
188views Database» more  ADBIS 2000»
15 years 7 months ago
Algorithms for Rewriting Aggregate Queries Using Views
Queries involving aggregation are typical in a number of database research areas, such as data warehousing, global information systems and mobile computing. One of the main ideas ...
Sara Cohen, Werner Nutt, Alexander Serebrenik