Sciweavers

9842 search results - page 431 / 1969
» The Complexity of the Matching-Cut Problem
Sort
View
CCS
2006
ACM
15 years 8 months ago
Resiliency policies in access control
We introduce the notion of resiliency policies in the context of access control systems. Such policies require an access control system to be resilient to the absence of users. An...
Ninghui Li, Mahesh V. Tripunitara, Qihua Wang
COMPGEOM
2011
ACM
14 years 8 months ago
Deconstructing approximate offsets
We consider the offset-deconstruction problem: Given a polygonal shape Q with n vertices, can it be expressed, up to a tolerance ε in Hausdorff distance, as the Minkowski sum o...
Eric Berberich, Dan Halperin, Michael Kerber, Roza...
NIPS
2007
15 years 6 months ago
Fixing Max-Product: Convergent Message Passing Algorithms for MAP LP-Relaxations
We present a novel message passing algorithm for approximating the MAP problem in graphical models. The algorithm is similar in structure to max-product but unlike max-product it ...
Amir Globerson, Tommi Jaakkola
ISSAC
2007
Springer
94views Mathematics» more  ISSAC 2007»
15 years 10 months ago
Faster algorithms for the characteristic polynomial
A new randomized algorithm is presented for computing the characteristic polynomial of an n × n matrix over a field. Over a sufficiently large field the asymptotic expected com...
Clément Pernet, Arne Storjohann
ESORICS
1998
Springer
15 years 9 months ago
Rules for Designing Multilevel Object-Oriented Databases
When implementing a multilevel security policy for Object-Oriented Databases (OODBs), several aspects have to be investigated. One of these aspect is the design of multilevel OODB...
Frédéric Cuppens, Alban Gabillon