Sciweavers

1380 search results - page 170 / 276
» A General Polynomial Sieve
Sort
View
CCS
2007
ACM
14 years 26 days ago
Efficient policy analysis for administrative role based access control
Administrative RBAC (ARBAC) policies specify how Role-Based Access Control (RBAC) policies may be changed by each administrator. It is often difficult to fully understand the effe...
Scott D. Stoller, Ping Yang, C. R. Ramakrishnan, M...
CVPR
2009
IEEE
14 years 4 days ago
Nonlinear Nonnegative Component Analysis
In this paper general solutions for Nonlinear Nonnegative Component Analysis for data representation and recognition are proposed. That is, motivated by a combination of the Nonne...
Stefanos Zafeiriou, Maria Petrou
COLT
2008
Springer
13 years 10 months ago
Learning Acyclic Probabilistic Circuits Using Test Paths
We define a model of learning probabilistic acyclic circuits using value injection queries, in which an arbitrary subset of wires is set to fixed values, and the value on the sing...
Dana Angluin, James Aspnes, Jiang Chen, David Eise...
ESWS
2008
Springer
13 years 10 months ago
Forgetting Concepts in DL-Lite
To support the reuse and combination of ontologies in Semantic Web applications, it is often necessary to obtain smaller ontologies from existing larger ontologies. In particular, ...
Zhe Wang, Kewen Wang, Rodney W. Topor, Jeff Z. Pan
IJCAI
2007
13 years 10 months ago
Incompleteness and Incomparability in Preference Aggregation
We consider how to combine the preferences of multiple agents despite the presence of incompleteness and incomparability in their preference orderings. An agent’s preference orde...
Maria Silvia Pini, Francesca Rossi, Kristen Brent ...