522 search results - page 74 / 105 » Answering Aggregation Queries in a Secure System Model |
TLCA
2005
Springer
14 years 1 months ago
2005
Springer
This work sets the formal bases for building tools that help retrieve classes in object-oriented libraries. In such systems, the user provides a query, formulated as a set of class...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
We study the problem of continuous monitoring of top-k queries over multiple non-synchronized streams. Assuming a sliding window model, this general problem has been a well addres...
SIGMETRICS
2008
ACM
13 years 7 months ago
2008
ACM
Abstract-- An important intrinsic property of any structured Peer-to-Peer (P2P) overlay is multi-hop paths. Understanding their structure helps to solve challenging problems relate...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
The management of privacy and security in the context of data stream management systems (DSMS) remains largely an unaddressed problem to date. Unlike in traditional DBMSs where acc...