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» Executing Nested Queries
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110
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ICDE
2010
IEEE
233views Database» more  ICDE 2010»
15 years 9 months ago
Polynomial heuristics for query optimization
— Research on query optimization has traditionally focused on exhaustive enumeration of an exponential number of candidate plans. Alternatively, heuristics for query optimization...
Nicolas Bruno, César A. Galindo-Legaria, Mi...
154
Voted
CORR
2008
Springer
132views Education» more  CORR 2008»
15 years 3 months ago
Materialized View Selection by Query Clustering in XML Data Warehouses
XML data warehouses form an interesting basis for decision-support applications that exploit complex data. However, native XML database management systems currently bear limited p...
Hadj Mahboubi, Kamel Aouiche, Jérôme ...
150
Voted
IJAR
2007
96views more  IJAR 2007»
15 years 3 months ago
A paraconsistent logic programming approach for querying inconsistent databases
When integrating data coming from multiple different sources we are faced with the possibility of inconsistency in databases. A paraconsistent approach for knowledge base integra...
Sandra de Amo, Mônica Sakuray Pais
197
Voted
SIGMOD
2005
ACM
111views Database» more  SIGMOD 2005»
16 years 3 months ago
Efficient Computation of Multiple Group By Queries
Data analysts need to understand the quality of data in the warehouse. This is often done by issuing many Group By queries on the sets of columns of interest. Since the volume of ...
Zhimin Chen, Vivek R. Narasayya
119
Voted
WMCSA
2002
IEEE
15 years 8 months ago
Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks
We show how the database community’s notion of a generic query interface for data aggregation can be applied to ad-hoc networks of sensor devices. As has been noted in the senso...
Samuel Madden, Robert Szewczyk, Michael J. Frankli...