176 search results - page 4 / 36 » Answering aggregate queries in data exchange |
ICDT
2001
ACM
13 years 10 months ago
2001
ACM
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
ICDE
2009
IEEE
14 years 8 months ago
2009
IEEE
Recent interest in managing uncertainty in data
SIGMOD
2001
ACM
14 years 6 months ago
2001
ACM
The ability to approximately answer aggregation queries accurately and efficiently is of great benefit for decision support and data mining tools. In contrast to previous sampling...
VLDB
2000
ACM
13 years 9 months ago
2000
ACM
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
VLDB
2007
ACM
14 years 6 months ago
2007
ACM
As more sensitive data is captured in electronic form, security becomes more and more important. Data encryption is the main technique for achieving security. While in the past en...