418 search results - page 67 / 84 » Optimizing Large Join Queries in Mediation Systems |
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
We consider the problem of horizontally partitioning a dynamic relation across a large number of disks/nodes by the use of range partitioning. Such partitioning is often desirable...
TPDS
2008
13 years 7 months ago
2008
The efficiency of Peer-to-Peer (P2P) systems is largely dependent on the overlay constructions. Due to the random selection of logical neighbors, there often exists serious topolog...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
KDD
2002
ACM
14 years 8 months ago
2002
ACM
This paper presents an approach to automatically optimizing the retrieval quality of search engines using clickthrough data. Intuitively, a good information retrieval system shoul...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
XML database systems are expected to handle increasingly complex queries over increasingly large and highly structured XML databases. An important problem that needs to be solved ...