353 search results - page 54 / 71 » Processing Top-k Join Queries |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
DPD
1998
13 years 7 months ago
1998
Distributed databases operating over wide-area networks such as the Internet, must deal with the unpredictable nature of the performance of communication. The response times of acc...
IS
2008
13 years 7 months ago
2008
Abstract. Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network lin...
DEXA
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network lin...
SIGMOD
2010
ACM
14 years 20 days ago
2010
ACM
This demonstration presents FlexPref, a framework implemented inside the DBMS query processor that enables efficient and extensible preference query processing. FlexPref provides ...