510 search results - page 94 / 102 » Foundations of RDF Databases |
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
In this paper we consider distributed K-Nearest Neighbor (KNN) search and range query processing in high dimensional data. Our approach is based on Locality Sensitive Hashing (LSH...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
Data stream management systems usually have to process many long-running queries that are active at the same time. Multiple queries can be evaluated more efficiently together tha...
ADC
2009
Springer
14 years 2 months ago
2009
Springer
Access control has been studied for sometime, and there are a number of theories and techniques for handling access control for single or centralised systems; however, unique and ...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
Materialized XPath access-control views are commonly used for enforcing access control. When access control rules defining a materialized XML access-control view change, the view...
ISSTA
2006
ACM
14 years 1 months ago
2006
ACM
Modern enterprise systems support Role-Based Access Control (RBAC). Although RBAC allows restricting access to privileged operations, a deployer may actually intend to restrict ac...