109 search results - page 8 / 22 » Concurrent and Real-Time Update of Access Control Policies |
POLICY
2009
Springer
14 years 2 months ago
2009
Springer
—Access control and privacy policy relations tend to focus on decision outcomes and are very sensitive to defined terms and state. Small changes or updates to a policy language ...
SDMW
2009
Springer
14 years 2 months ago
2009
Springer
In this paper we investigate the feasibility and efficiency of mapping XML data and access control policies onto relational and native XML databases for storage and querying. We de...
PPDP
2010
Springer
13 years 5 months ago
2010
Springer
We propose a model for XML update primitives of the W3C XQuery Update Facility as parameterized rewriting rules of the form: "insert an unranked tree from a regular tree lang...
RTSS
2007
IEEE
14 years 1 months ago
2007
IEEE
It is challenging to process transactions in a timely fashion using fresh data, e.g., current stock prices, since database workloads may considerably vary due to dynamic data/reso...
VLDB
2005
ACM
14 years 7 months ago
2005
ACM
Abstract. In this paper we present new concurrent and recoverable B-link-tree algorithms. Unlike previous algorithms, ours maintain the balance of the B-link tree at all times, so ...