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» The Guarding Problem - Complexity and Approximation
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SODA
2008
ACM
200views Algorithms» more  SODA 2008»
15 years 8 months ago
Clustering for metric and non-metric distance measures
We study a generalization of the k-median problem with respect to an arbitrary dissimilarity measure D. Given a finite set P, our goal is to find a set C of size k such that the s...
Marcel R. Ackermann, Johannes Blömer, Christi...
FOCS
2008
IEEE
16 years 1 months ago
Degree Bounded Network Design with Metric Costs
Given a complete undirected graph, a cost function on edges and a degree bound B, the degree bounded network design problem is to find a minimum cost simple subgraph with maximum...
Yuk Hei Chan, Wai Shing Fung, Lap Chi Lau, Chun Ko...
WSC
1998
15 years 8 months ago
Discrete-Event Simulation for the Design and Evaluation of Physical Protection Systems
This paper explores the use of discrete-event simulation for the design and control of physical protection systems for fixed-site facilities housing items of significant value. It...
Sabina E. Jordan, Mark K. Snell, Marcella M. Madse...
TKDE
2010
158views more  TKDE 2010»
15 years 5 months ago
Voting Systems with Trust Mechanisms in Cyberspace: Vulnerabilities and Defenses
—With the popularity of voting systems in cyberspace, there are growing evidence that the current voting systems can be manipulated by fake votes. This problem has attracted many...
Qinyuan Feng, Yan Lindsay Sun, Ling Liu, Yafei Yan...
LION
2009
Springer
152views Optimization» more  LION 2009»
16 years 1 months ago
Comparison of Coarsening Schemes for Multilevel Graph Partitioning
Graph partitioning is a well-known optimization problem of great interest in theoretical and applied studies. Since the 1990s, many multilevel schemes have been introduced as a pra...
Cédric Chevalier, Ilya Safro