418 search results - page 19 / 84 » Optimizing Large Join Queries in Mediation Systems |
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Solid state drives perform random reads more than 100x faster than traditional magnetic hard disks, while offering comparable sequential read and write bandwidth. Because of their...
TKDE
1998
13 years 7 months ago
1998
—When a multidatabase system contains textual database systems (i.e., information retrieval systems), queries against the global schema of the multidatabase system may contain a ...
ADC
2005
Springer
14 years 1 months ago
2005
Springer
Although data stored in XML is of increasing importance, most existing data repositories are still managed by relational database systems. In light of this, recent XML database re...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
In this paper, we propose a new approach to automatically compose data providing Web services. Our approach exploits existing mature works done in data integration systems. Specif...
DEXA
2005
Springer
14 years 1 months ago
2005
Springer
Finding all the occurrences of a twig pattern in an XML database is a core operation for efficient evaluation of XML queries. Holistic twig join algorithm has showed its superiorit...