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VLDB
2007
ACM
141views Database» more  VLDB 2007»
14 years 9 months ago
Query Processing over Incomplete Autonomous Databases
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
Garrett Wolf, Hemal Khatri, Bhaumik Chokshi, Jianc...
SIGMOD
2004
ACM
147views Database» more  SIGMOD 2004»
14 years 8 months ago
Robust Query Processing through Progressive Optimization
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
Volker Markl, Vijayshankar Raman, David E. Simmen,...
DBISP2P
2004
Springer
111views Database» more  DBISP2P 2004»
14 years 2 months ago
Processing and Optimization of Complex Queries in Schema-Based P2P-Networks
Peer-to-Peer infrastructures are emerging as one of the important data management infrastructures in the World Wide Web. So far, however, most work has focused on simple P2P networ...
Hadhami Dhraief, Alfons Kemper, Wolfgang Nejdl, Ch...
DMSN
2006
ACM
14 years 10 days ago
Processing proximity queries in sensor networks
Sensor networks are often used to perform monitoring tasks, such as in animal or vehicle tracking and in surveillance of enemy forces in military applications. In this paper we in...
Yannis Kotidis
BDA
2007
13 years 10 months ago
A Satisfaction Balanced Query Allocation Process for Distributed Information Systems
We consider a distributed information system that allows autonomous consumers to query autonomous providers. We focus on the problem of query allocation from a new point of view, ...
Jorge-Arnulfo Quiané-Ruiz, Philippe Lamarre...