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ForceAtlas2, a Continuous Graph Layout Algorithm for Handy Network Visualization Designed for the Gephi Software

Research output: Contribution to journalArticlepeer-review

Mathieu Jacomy, Tommaso Venturini, Sebastien Heymann, Mathieu Bastian

Original languageEnglish
Article number98679
Number of pages12
JournalPL o S One
Volume9
Issue number6
DOIs
Accepted/In press6 May 2014
Published10 Jun 2014

Documents

  • 10.1371_journal.pone.0098679

    10.1371_journal.pone.0098679.PDF, 2.17 MB, application/pdf

    Uploaded date:27 Apr 2016

    Version:Final published version

    Licence:CC BY

King's Authors

Abstract

Gephi is a network visualization software used in various disciplines (social network analysis, biology, genomics...). One of its key features is the ability to display the spatialization process, aiming at transforming the network into a map, and ForceAtlas2 is its default layout algorithm. The latter is developed by the Gephi team as an all-around solution to Gephi users' typical networks (scale-free, 10 to 10,000 nodes). We present here for the first time its functioning and settings. ForceAtlas2 is a force-directed layout close to other algorithms used for network spatialization. We do not claim a theoretical advance but an attempt to integrate different techniques such as the Barnes Hut simulation, degree-dependent repulsive force, and local and global adaptive temperatures. It is designed for the Gephi user experience (it is a continuous algorithm), and we explain which constraints it implies. The algorithm benefits from much feedback and is developed in order to provide many possibilities through its settings. We lay out its complete functioning for the users who need a precise understanding of its behaviour, from the formulas to graphic illustration of the result. We propose a benchmark for our compromise between performance and quality. We also explain why we integrated its various features and discuss our design choices.

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