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» Optimizing Monitoring Queries over Distributed Data
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ICDE
2002
IEEE
112views Database» more  ICDE 2002»
16 years 7 months ago
Design and Evaluation of Alternative Selection Placement Strategies in Optimizing Continuous Queries
In this paper, we design and evaluate alternative selection placement strategies for optimizing a very large number of continuous queries in an Internet environment. Two grouping ...
Jianjun Chen, David J. DeWitt, Jeffrey F. Naughton
WWW
2005
ACM
16 years 7 months ago
ATMEN: a triggered network measurement infrastructure
Web performance measurements and availability tests have been carried out using a variety of infrastructures over the last several years. Disruptions in the Internet can lead to W...
Balachander Krishnamurthy, Harsha V. Madhyastha, O...
WEBDB
2001
Springer
113views Database» more  WEBDB 2001»
15 years 10 months ago
Indexing XML Data with ToXin
Indexing schemes for semistructured data have been developed in recent years to optimize path query processing by summarizing path information. However, most of these schemes can ...
Flavio Rizzolo, Alberto O. Mendelzon
CIKM
2009
Springer
16 years 27 days ago
Reducing the risk of query expansion via robust constrained optimization
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...
Kevyn Collins-Thompson
VLDB
2004
ACM
127views Database» more  VLDB 2004»
16 years 6 months ago
Querying high-dimensional data in single-dimensional space
In this paper, we propose a new tunable index scheme, called iMinMax(), that maps points in highdimensional spaces to single-dimensional values determined by their maximum or minim...
Cui Yu, Stéphane Bressan, Beng Chin Ooi, Kian-Lee...