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ALGOSENSORS
2009
Springer
15 years 10 months ago
Improved Approximation Algorithms for Maximum Lifetime Problems in Wireless Networks
A wireless ad-hoc network is a collection of transceivers positioned in the plane. Each transceiver is equipped with a limited battery charge. The battery charge is then reduced a...
Zeev Nutov, Michael Segal
WINE
2009
Springer
178views Economy» more  WINE 2009»
15 years 10 months ago
The Geometry of Truthfulness
We study the geometrical shape of the partitions of the input space created by the allocation rule of a truthful mechanism for multi-unit auctions with multidimensional types and ...
Angelina Vidali
DFG
2009
Springer
15 years 10 months ago
Group-Level Analysis and Visualization of Social Networks
Social network analysis investigates the structure of relations amongst social actors. A general approach to detect patterns of interaction and to filter out irregularities is to ...
Michael Baur, Ulrik Brandes, Jürgen Lerner, D...
FSTTCS
2009
Springer
15 years 10 months ago
Kernels for Feedback Arc Set In Tournaments
A tournament T = (V, A) is a directed graph in which there is exactly one arc between every pair of distinct vertices. Given a digraph on n vertices and an integer parameter k, th...
Stéphane Bessy, Fedor V. Fomin, Serge Gaspe...
GECCO
2009
Springer
254views Optimization» more  GECCO 2009»
15 years 10 months ago
Agglomerative genetic algorithm for clustering in social networks
Size and complexity of data repositories collaboratively created by Web users generate a need for new processing approaches. In this paper, we study the problem of detection of ...
Marek Lipczak, Evangelos E. Milios