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AMAI
2005
Springer
13 years 4 months ago
A SAT approach to query optimization in mediator systems
Mediator systems integrate distributed, heterogeneous and autonomous data sources, but their e ective use requires the solution of hard query optimization problems. This is usuall...
Steven David Prestwich, Stéphane Bressan
VLDB
2004
ACM
124views Database» more  VLDB 2004»
13 years 10 months ago
Data Sharing Through Query Translation in Autonomous Sources
We consider the problem of data sharing between autonomous data sources in an environment where constraints cannot be placed on the shared contents of sources. Our solutions rely ...
Anastasios Kementsietsidis, Marcelo Arenas
VLDB
2005
ACM
104views Database» more  VLDB 2005»
13 years 10 months ago
Approximate Matching of Hierarchical Data Using pq-Grams
When integrating data from autonomous sources, exact matches of data items that represent the same real world object often fail due to a lack of common keys. Yet in many cases str...
Nikolaus Augsten, Michael H. Böhlen, Johann G...
ICDE
2006
IEEE
275views Database» more  ICDE 2006»
14 years 6 months ago
Privacy Preserving Query Processing Using Third Parties
Data integration from multiple autonomous data sources has emerged as an important practical problem. The key requirement for such data integration is that owners of such data nee...
Amr El Abbadi, Aziz Gulbeden, Divyakant Agrawal, F...
ICDE
2009
IEEE
198views Database» more  ICDE 2009»
14 years 6 months ago
Double Index NEsted-Loop Reactive Join for Result Rate Optimization
Adaptive join algorithms have recently attracted a lot of attention in emerging applications where data is provided by autonomous data sources through heterogeneous network enviro...
Mihaela A. Bornea, Vasilis Vassalos, Yannis Kotidi...