857 search results - page 102 / 172 » A Formal Framework for Adaptive Access Control Models |
BTW
2003
Springer
14 years 28 days ago
2003
Springer
Abstract: In order to achieve efficient execution plans for queries comprising userdefined data types and predicates, the database system has to be provided with appropriate index ...
EPIA
2003
Springer
14 years 28 days ago
2003
Springer
Most of supervised learning algorithms assume the stability of the target concept over time. Nevertheless in many real-user modeling systems, where the data is collected over an ex...
WWW
2001
ACM
14 years 8 months ago
2001
ACM
Integrity constraints are an essential part of a modern schema definition language. They are useful for semantic specification, update consistency control, query optimization, inf...
TSMC
1998
13 years 7 months ago
1998
—The paper discusses how Petri nets may be used for the qualitative modeling of physical systems. The qualitative state of a system is represented by the marking of the net. The ...
OOPSLA
2004
Springer
14 years 1 months ago
2004
Springer
A proxy object is a surrogate or placeholder that controls access to another target object. Proxies can be used to support distributed programming, lazy or parallel evaluation, ac...