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AAAI
2008
15 years 8 months ago
Approximability of Manipulating Elections
In this paper, we set up a framework to study approximation of manipulation, control, and bribery in elections. We show existence of approximation algorithms (even fully polynomia...
Eric Brelsford, Piotr Faliszewski, Edith Hemaspaan...
INFOCOM
2008
IEEE
16 years 22 days ago
Towards Optimal Resource Allocation in Partial-Fault Tolerant Applications
—We introduce Zen, a new resource allocation framework that assigns application components to node clusters to achieve high availability for partial-fault tolerant (PFT) applicat...
Nikhil Bansal, Ranjita Bhagwan, Navendu Jain, Yoon...
DAM
1998
65views more  DAM 1998»
15 years 6 months ago
Minimization of an M-convex Function
M-convex functions, introduced by Murota (1996, 1998), enjoy various desirable properties as “discrete convex functions.” In this paper, we propose two new polynomial-time sca...
Akiyoshi Shioura
FOCS
2008
IEEE
15 years 7 months ago
Set Covering with our Eyes Closed
Given a universe U of n elements and a weighted collection S of m subsets of U, the universal set cover problem is to a-priori map each element u ∈ U to a set S(u) ∈ S contain...
Fabrizio Grandoni, Anupam Gupta, Stefano Leonardi,...
TRS
2008
15 years 6 months ago
Local and Global Approximations for Incomplete Data
Abstract. For completely specified decision tables lower and upper approximations are unique, the lower approximation is the largest definable set contained in the approximated set...
Jerzy W. Grzymala-Busse, Wojciech Rzasa