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» Algorithms for Rewriting Aggregate Queries Using Views
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143
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DOLAP
2003
ACM
15 years 9 months ago
Exploiting hierarchical clustering in evaluating multidimensional aggregation queries
Multidimensional aggregation queries constitute the single most important class of queries for data warehousing applications and decision support systems. The bottleneck in the ev...
Dimitri Theodoratos
159
Voted
CORR
2011
Springer
185views Education» more  CORR 2011»
14 years 10 months ago
Sound and Complete Query Answering in Intensional P2P Data Integration
Contemporary use of the term ’intension’ derives from the traditional logical doctrine that an idea has both an extension and an intension. In this paper we introduce an intens...
Zoran Majkic
141
Voted
HICSS
2010
IEEE
237views Biometrics» more  HICSS 2010»
15 years 10 months ago
Data Aggregation and Analysis for Cancer Statistics - A Visual Analytics Approach
The disparity between data collected in rural and urban counties is often detrimental in the appropriate analysis of cancer care statistics. Low counts drastically affect the inci...
Ross Maciejewski, Travis Drake, Stephen Rudolph, A...
160
Voted
CORR
2011
Springer
160views Education» more  CORR 2011»
14 years 10 months ago
Provenance for Aggregate Queries
We study in this paper provenance information for queries with aggregation. Provenance information was studied in the context of various query languages that do not allow for aggr...
Yael Amsterdamer, Daniel Deutch, Val Tannen
128
Voted
CAISE
2006
Springer
15 years 7 months ago
A Non-Linear Cost Model for Multi-Node OLAP Systems
Answering performance to business queries, mainly of aggregated nature, known as On-Line Analytical Processing queries, depends heavily on the proper selection of multidimensional ...
Jorge Loureiro, Orlando Belo