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» Approximating Some Network Design Problems with Node Costs
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FOCS
2002
IEEE
14 years 3 months ago
A Constant-Factor Approximation Algorithm for the Multicommodity
We present the first constant-factor approximation algorithm for network design with multiple commodities and economies of scale. We consider the rent-or-buy problem, a type of m...
Amit Kumar, Anupam Gupta, Tim Roughgarden
SDM
2009
SIAM
331views Data Mining» more  SDM 2009»
14 years 7 months ago
Privacy Preservation in Social Networks with Sensitive Edge Weights.
With the development of emerging social networks, such as Facebook and MySpace, security and privacy threats arising from social network analysis bring a risk of disclosure of con...
Jie Wang, Jinze Liu, Jun Zhang, Lian Liu
ICCAD
2003
IEEE
113views Hardware» more  ICCAD 2003»
14 years 7 months ago
Branch Merge Reduction of RLCM Networks
— In this paper we consider the problem of finding a smaller RLCM circuit that approximately replicates the behavior (up to a certain frequency) of a given RLCM circuit. Targeted...
Bernard N. Sheehan
MOBIHOC
2008
ACM
14 years 9 months ago
An approximation algorithm for conflict-aware broadcast scheduling in wireless ad hoc networks
Broadcast scheduling is a fundamental problem in wireless ad hoc networks. The objective of a broadcast schedule is to deliver a message from a given source to all other nodes in ...
Reza Mahjourian, Feng Chen, Ravi Tiwari, My T. Tha...
MICS
2008
124views more  MICS 2008»
13 years 8 months ago
Community Structures of Networks
We present an approach to studying the community structures of networks by using linear programming (LP). Starting with a network in terms of (a) a collection of nodes and (b) a co...
William Y. C. Chen, Andreas W. M. Dress, Winking Q...