798 search results - page 94 / 160 » Comparing the expressive power of access control models |
RTSS
2007
IEEE
14 years 3 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...
MSWIM
2006
ACM
14 years 3 months ago
2006
ACM
Recent studies and publications have shown a demand for a secure method to proof someones or somenthings position via a communication channel. In this paper we present a concept a...
SRDS
2005
IEEE
14 years 2 months ago
2005
IEEE
Atomic broadcast in particular, and group communication in general, have mainly been specified and implemented in a system model where processes do not recover after a crash. The...
KI
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. Modal logics see a wide variety of applications in artificial intelligence, e.g. in reasoning about knowledge, belief, uncertainty, agency, defaults, and relevance. From ...
VLDB
2007
ACM
14 years 9 months ago
2007
ACM
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...