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ICDE
2004
IEEE
85views Database» more  ICDE 2004»
15 years 11 months ago
Selectivity Estimation for String Predicates: Overcoming the Underestimation Problem
Queries with (equality or LIKE) selection predicates over string attributes are widely used in relational databases. However, state-of-the-art techniques for estimating selectivit...
Surajit Chaudhuri, Venkatesh Ganti, Luis Gravano
ICDE
2004
IEEE
120views Database» more  ICDE 2004»
15 years 11 months ago
Minimization and Group-By Detection for Nested XQueries
We describe and evaluate a query minimization technique that applies to XQueries, which are nested, perform arbitrary joins, and freely mix bag and set semantics. These features c...
Alin Deutsch, Yannis Papakonstantinou, Yu Xu
ICDE
2004
IEEE
118views Database» more  ICDE 2004»
15 years 11 months ago
A Peer-to-peer Framework for Caching Range Queries
Peer-to-peer systems are mainly used for object sharing although they can provide the infrastructure for many other applications. In this paper, we extend the idea of object shari...
Ozgur D. Sahin, Abhishek Gupta, Divyakant Agrawal,...
ICDE
2004
IEEE
259views Database» more  ICDE 2004»
15 years 11 months ago
Querying about the Past, the Present, and the Future in Spatio-Temporal
Moving objects (e.g., vehicles in road networks) continuously generate large amounts of spatio-temporal information in the form of data streams. Efficient management of such strea...
Jimeng Sun, Dimitris Papadias, Yufei Tao, Bin Liu
ICDE
2004
IEEE
100views Database» more  ICDE 2004»
15 years 11 months ago
Simple, Robust and Highly Concurrent B-trees with Node Deletion
Why might B-tree concurrency control still be interesting? For two reasons: (i) currently exploited "real world" approaches are complicated; (ii) simpler proposals are n...
David B. Lomet