855 search results - page 24 / 171 » Using First-Order Logic to Reason about Policies |
AAAI
2006
13 years 9 months ago
2006
Partially observed actions are observations of action executions in which we are uncertain about the identity of objects, agents, or locations involved in the actions (e.g., we kn...
SACMAT
2006
ACM
14 years 1 months ago
2006
ACM
The growing importance of access control has led to the definition of numerous languages for specifying policies. Since these languages are based on different foundations, langua...
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
In this paper, we consider various spatial relationships that are of general interest in pictorial database systems. We present a set of rules that allow us to deduce new relation...
MOBIQUITOUS
2007
IEEE
14 years 1 months ago
2007
IEEE
— According to the IETF definition, “presence conveys the ability and willingness of a user to communicate across a set of devices”. In this paper we use semantic techniques ...
PSSE
2004
Springer
14 years 1 months ago
2004
Springer
“demonic” nondeterminism, representing abstraction from (or ignorance of) which of two program fragments will be executed. By introducing probabilistic nondeterminism into GCL,...