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» On Parameterized Intractability: Hardness and Completeness
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SIGGRAPH
1996
ACM
13 years 11 months ago
Linear-Time Dynamics Using Lagrange Multipliers
Current linear-time simulation methods for articulated figures are based exclusively on reduced-coordinate formulations. This paper describes a general, non-iterative linear-time ...
David Baraff
CORR
2002
Springer
125views Education» more  CORR 2002»
13 years 6 months ago
Complexity of Manipulating Elections with Few Candidates
In multiagent settings where the agents have different preferences, preference aggregation is a central issue. Voting is a general method for preference aggregation, but seminal r...
Vincent Conitzer, Tuomas Sandholm
COCOON
2009
Springer
14 years 1 months ago
Graph-Based Data Clustering with Overlaps
We introduce overlap cluster graph modification problems where, other than in most previous work, the clusters of the target graph may overlap. More precisely, the studied graph p...
Michael R. Fellows, Jiong Guo, Christian Komusiewi...
TCS
1998
13 years 6 months ago
Threshold Dominating Sets and an Improved Characterization of W[2]
The Threshold Dominating Set problem is that of determining for a graph G = (V, E) whether there is a subset V ⊆ V of size k, such that for each vertex v ∈ V there are at leas...
Rodney G. Downey, Michael R. Fellows
ESORICS
2007
Springer
13 years 10 months ago
Satisfiability and Resiliency in Workflow Systems
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...
Qihua Wang, Ninghui Li