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Force-Directed Layout Community Detection

  • Yi Song
  • Stéphane Bressan
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8055)

Abstract

We propose a graph-layout based method for detecting communities in networks. We first project the graph onto a Euclidean space using Fruchterman-Reingold algorithm, a force-based graph drawing algorithm. We then cluster the vertices according to Euclidean distance. The idea is a form of dimension reduction. The graph drawing in two or more dimensions provides a heuristic decision as whether vertices are connected by a short path approximated by their Euclidean distance. We study community detection for both disjoint and overlapping communities. For the case of disjoint communities, we use k-means clustering. For the case of overlapping communities, we use fuzzy-c means algorithm. We evaluate the performance of our different algorithms for varying parameters and number of iterations. We compare the results to several state of the art community detection algorithms, each of which clusters the graph directly or indirectly according to geodesic distance. We show that, for non-trivially small graphs, our method is both effective and efficient. We measure effectiveness using modularity when the communities are not known in advance and precision when the communities are known in advance. We measure efficiency with running time. The running time of our algorithms can be controlled by the number of iterations of the Fruchterman-Reingold algorithm.

Keywords

Community Detection Graph Cluster Community Detection Algorithm Label Propagation Algorithm Benchmark Graph 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Yi Song
    • 1
  • Stéphane Bressan
    • 1
  1. 1.School of ComputingNational University of SingaporeSingapore

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