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SOCIALCOM
2010
15 years 2 months ago
Estimating the Size of Online Social Networks
The huge size of online social networks (OSNs) makes it prohibitively expensive to precisely measure any properties which require the knowledge of the entire graph. To estimate the...
Shaozhi Ye, Shyhtsun Felix Wu
GECCO
2009
Springer
103views Optimization» more  GECCO 2009»
15 years 1 months ago
Bumblebees: a multiagent combinatorial optimization algorithm inspired by social insect behaviour
This paper introduces a multiagent optimization algorithm inspired by the collective behavior of social insects. In our method, each agent encodes a possible solution of the probl...
Francesc Comellas, Jesus Martinez-Navarro
AISS
2010
161views more  AISS 2010»
15 years 1 months ago
Two GRASP Metaheuristic for the Capacitated Vehicle Routing Problem Considering Split Delivery and Solving the Three Dimensional
The vehicle routing problem consists in determining a group of optimal delivery routes that allow satisfaction of the demand from customers spread along a network, which can be re...
Joseph Gallart Suarez, Manuel Tupia Anticona
233
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SIAMCOMP
2011
14 years 7 months ago
Inapproximability Results for Maximum Edge Biclique, Minimum Linear Arrangement, and Sparsest Cut
We consider the Minimum Linear Arrangement problem and the (Uniform) Sparsest Cut problem. So far, these two notorious NP-hard graph problems have resisted all attempts to prove in...
Christoph Ambühl, Monaldo Mastrolilli, Ola Sv...
IPPS
2010
IEEE
15 years 2 months ago
A distributed diffusive heuristic for clustering a virtual P2P supercomputer
Abstract--For the management of a virtual P2P supercomputer one is interested in subgroups of processors that can communicate with each other efficiently. The task of finding these...
Joachim Gehweiler, Henning Meyerhenke