188 search results - page 32 / 38 » Query evaluation with soft-key constraints |
RTAS
2002
IEEE
14 years 8 days ago
2002
IEEE
Large-scale wireless sensor networks represent a new generation of real-time embedded systems with significantly different communication constraints from traditional networked sys...
BTW
2007
Springer
13 years 11 months ago
2007
Springer
: Schema mapping techniques for data exchange have become popular and useful tools both in research and industry. A schema mapping relates a source schema with a target schema via ...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
SIGMOD
2010
ACM
14 years 5 days ago
2010
ACM
We present SecureBlox, a declarative system that unifies a distributed query processor with a security policy framework. SecureBlox decouples security concerns from system speci...
CAMP
2005
IEEE
14 years 1 months ago
2005
IEEE
— For a peer-to-peer (P2P) system holding massive amount of data, an efficient and scalable search for resource sharing is a key determinant to its practical usage. Unstructured...