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» Automating Statistics Management for Query Optimizers
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DOLAP
2006
ACM
14 years 1 months ago
A study on workload-aware wavelet synopses for point and range-sum queries
In this paper we perform an extensive theoretical and experimental study on common synopsis construction algorithms, with emphasis on wavelet based techniques, that take under con...
Michael Mathioudakis, Dimitris Sacharidis, Timos K...
IDEAS
2008
IEEE
109views Database» more  IDEAS 2008»
14 years 1 months ago
EXsum: an XML summarization framework
1 We propose a new framework for the summarization of XML document properties called EXsum (Element-wise XML summarization), which can capture statistical information of all import...
José de Aguiar Moraes Filho, Theo Härd...
ICDE
2007
IEEE
122views Database» more  ICDE 2007»
14 years 8 months ago
Load Distribution Fairness in P2P Data Management Systems
We address the issue of measuring storage, or query load distribution fairness in peer-to-peer data management systems. Existing metrics may look promising from the point of view ...
Theoni Pitoura, Peter Triantafillou
ESCIENCE
2007
IEEE
13 years 11 months ago
Storing and Querying Scientific Workflow Provenance Metadata Using an RDBMS
Provenance management has become increasingly important to support scientific discovery reproducibility, result interpretation, and problem diagnosis in scientific workflow enviro...
Artem Chebotko, Xubo Fei, Cui Lin, Shiyong Lu, Far...
PODS
2010
ACM
207views Database» more  PODS 2010»
14 years 14 days ago
Understanding cardinality estimation using entropy maximization
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...
Christopher Ré, Dan Suciu