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ICDE
2005
IEEE
183views Database» more  ICDE 2005»
14 years 10 months ago
Adaptive Caching for Continuous Queries
We address the problem of executing continuous multiway join queries in unpredictable and volatile environments. Our query class captures windowed join queries in data stream syst...
Shivnath Babu, Kamesh Munagala, Jennifer Widom, Ra...
DBPL
2001
Springer
115views Database» more  DBPL 2001»
14 years 1 months ago
Optimization Properties for Classes of Conjunctive Regular Path Queries
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...
Alin Deutsch, Val Tannen
SIGMOD
2008
ACM
150views Database» more  SIGMOD 2008»
14 years 9 months ago
Query biased snippet generation in XML search
Snippets are used by almost every text search engine to complement ranking scheme in order to effectively handle user searches, which are inherently ambiguous and whose relevance ...
Yu Huang, Ziyang Liu, Yi Chen
GIS
2006
ACM
14 years 10 months ago
Representation of periodic moving objects in databases
In the real world, lots of objects with changing position can be found. Some of them repeat the same movement several times, called periodic movements. Examples include airplanes,...
Ralf Hartmut Güting, Thomas Behr, Victor Teix...
EUROPAR
2003
Springer
14 years 2 months ago
Preventive Multi-master Replication in a Cluster of Autonomous Databases
We consider the use of a cluster of PC servers for Application Service Providers where applications and databases must remain autonomous. We use data replication to improve data av...
Esther Pacitti, M. Tamer Özsu, Cédric ...