2145 search results - page 406 / 429 » Pattern-Based Query Answering |
PODS
2008
ACM
14 years 8 months ago
2008
ACM
We present a novel definition of privacy in the framework of offline (retroactive) database query auditing. Given information about the database, a description of sensitive data, ...
MOBISYS
2007
ACM
14 years 7 months ago
2007
ACM
Provenance becomes a critical requirement for healthcare IT infrastructures, especially when pervasive biomedical sensors act as a source of raw medical streams for large-scale, a...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
We present a simple and practical algorithm for the c-approximate near neighbor problem (c-NN): given n points P Rd and radius R, build a data structure which, given q Rd , can ...
ICTAI
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—In distributed environments, access control decisions depend on statements of multiple agents rather than only one central trusted party. However, existing policy langua...
CCS
2007
ACM
14 years 2 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 ...