27 search results - page 1 / 6 » On Finding an Inference-Proof Complete Database for Controll... |
DBSEC
2006
13 years 6 months ago
2006
Abstract. Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling t...
SIGMOD
2006
ACM
14 years 4 months ago
2006
ACM
We study the problem of finding efficient equivalent viewbased rewritings of relational queries, focusing on query optimization using materialized views under the assumption that ...
WAIM
2004
Springer
13 years 10 months ago
2004
Springer
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
GVD
2009
13 years 2 months ago
2009
Evaluating a traditional database query against a data tuple returns a true on match and a false on mismatch. Unfortunately, there are many application scenarios where such an eva...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
In location-based services, it is common for a user to issue a query based on his/her current position. One such example is "find the available cabs within two miles of my cu...