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» Rank-aware Query Optimization
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PODS
2001
ACM
143views Database» more  PODS 2001»
14 years 9 months ago
Pipelining in Multi-Query Optimization
Database systems frequently have to execute a set of related queries, which share several common subexpressions. Multi-query optimization exploits this, by finding evaluation plan...
Nilesh N. Dalvi, Sumit K. Sanghai, Prasan Roy, S. ...
EDBT
2006
ACM
136views Database» more  EDBT 2006»
14 years 9 months ago
Optimizing Monitoring Queries over Distributed Data
Scientific data in the life sciences is distributed over various independent multi-format databases and is constantly expanding. We discuss a scenario where a life science research...
Frank Neven, Dieter Van de Craen
CIKM
2010
Springer
13 years 8 months ago
Query optimization for ontology-based information integration
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...
Yingjie Li, Jeff Heflin
DEXA
2000
Springer
98views Database» more  DEXA 2000»
14 years 2 months ago
Optimal Page Ordering for Region Queries in Static Spatial Databases
Page ordering is to define the order of pages in one-dimensional storage for storing two-dimensional spatial data to reduce the number of disk seeks. Previous works relating to pag...
Daesoo Cho, Bonghee Hong
VLDB
2001
ACM
86views Database» more  VLDB 2001»
14 years 10 months ago
A graph-theoretic model for optimizing queries involving methods
Chiang Lee, Chi-Sheng Shih, Yaw-Huei Chen