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SODA
2008
ACM
128views Algorithms» more  SODA 2008»
13 years 9 months ago
Analysis of greedy approximations with nonsubmodular potential functions
In this paper, we present two techniques to analyze greedy approximation with nonsubmodular functions restricted submodularity and shifted submodularity. As an application of the ...
Ding-Zhu Du, Ronald L. Graham, Panos M. Pardalos, ...
INFOCOM
2011
IEEE
12 years 11 months ago
Fully secure pairwise and triple key distribution in wireless sensor networks using combinatorial designs
—We address pairwise and (for the first time) triple key establishment problems in wireless sensor networks (WSN). We use combinatorial designs to establish pairwise keys betwee...
Sushmita Ruj, Amiya Nayak, Ivan Stojmenovic
COCOON
2008
Springer
13 years 9 months ago
Approximating the Generalized Capacitated Tree-Routing Problem
In this paper, we introduce the generalized capacitated tree-routing problem (GCTR), which is described as follows. Given a connected graph G = (V, E) with a sink s V and a set M...
Ehab Morsy, Hiroshi Nagamochi
NETWORKING
2007
13 years 9 months ago
Interference-Aware Multicasting in Wireless Mesh Networks
Multicasting is one of the most important applications in Wireless Ad hoc Networks and the currently emerging Wireless Mesh Networks. In such networks, interference due to the shar...
Sudheendra Murthy, Abhishek Goswami, Arunabha Sen
ESA
2007
Springer
125views Algorithms» more  ESA 2007»
14 years 1 months ago
Pricing Tree Access Networks with Connected Backbones
Consider the following network subscription pricing problem. We are given a graph G = (V, E) with a root r, and potential customers are companies headquartered at r with locations...
Vineet Goyal, Anupam Gupta, Stefano Leonardi, R. R...