40 search results - page 8 / 8 » Intractability of Clique-Width Parameterizations |
CCS
2007
ACM
13 years 9 months ago
2007
ACM
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...
FCT
2007
Springer
13 years 9 months ago
2007
Springer
We investigate issues regarding two hard problems related to voting, the optimal weighted lobbying problem and the winner problem for Dodgson elections. Regarding the former, Chris...
ESORICS
2007
Springer
13 years 9 months ago
2007
Springer
We propose the role-and-relation-based access control (R2 BAC) model for workflow systems. In R2 BAC, in addition to a user's role memberships, the user's relationships w...
NIPS
2001
13 years 6 months ago
2001
High dimensional data that lies on or near a low dimensional manifold can be described by a collection of local linear models. Such a description, however, does not provide a glob...
JUCS
2010
13 years 3 months ago
2010
Abstract: This paper discusses three rectilinear (that is, axis-parallel) covering problems in d dimensions and their variants. The first problem is the Rectilinear Line Cover whe...