522 search results - page 60 / 105 » Answering Aggregation Queries in a Secure System Model |
ICIP
1998
IEEE
14 years 9 months ago
1998
IEEE
We describe a new invariant-based data model for image databases under our approach for shape-based retrieval. The data model relies on contours description of the image shape, an...
DBSEC
2000
13 years 9 months ago
2000
We propose two extensions to the SQL grant/revoke security model. In SQL, grants are unconditional, so the grantor must simply trust the recipient's discretion. We allow a gr...
AGENTS
2001
Springer
14 years 5 days ago
2001
Springer
Agents are intended to interact in open systems where the knowledge about others (reputation) is incomplete and uncertain. Also, this knowledge about other agents is subjective si...
EUROMICRO
2003
IEEE
14 years 29 days ago
2003
IEEE
: The approach of aggregating components into complex software systems is maturing with the rapid development of component technology. How to analyze software reliability from syst...
EUC
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. With the knowledge about their locations, mobile users are able to issue location-dependent queries. Most of existing approaches focus on how to obtain the information ab...