418 search results - page 81 / 84 » Optimizing Large Join Queries in Mediation Systems |
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Due to the rapid growth in the size of the web, web search engines are facing enormous performance challenges. The larger engines in particular have to be able to process tens of ...
EDBT
2010
ACM
13 years 11 months ago
2010
ACM
The specification of schema mappings has proved to be time and resource consuming, and has been recognized as a critical bottleneck to the large scale deployment of data integrati...
ICCS
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...
IJCSA
2008
13 years 7 months ago
2008
: Skyline Queries have recently received a lot of attention due to their intuitive query capabilities. Following the concept of Pareto optimality all `best' database objects a...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Distributed and parallel computing environments are becoming cheap and commonplace. The availability of large numbers of CPU's makes it possible to process more data at highe...