Preprint

Fat tails, long memory, maturity and ageing in open-source software projects

  • Challet, Damien Institute for Scientifc Interchange (ISI), Torino, Italy - Physics department, University of Fribourg, Switzerland
  • Valverde, Sergi ICREA-Complex Systems Lab, Pompeu Fabra University, Barcelona, Spain - Centre de Recherches sur la Cognition Animale, CNRS-UMR, Université Paul Sabatier, Toulouse, France
    2008
English We report activity data analysis on several open source software projects, focusing on time between modifications and on the number of files modified at once. Both have fat-tailed distributions, long-term memory, and display systematic non-trivial cross-correlations, suggesting that quiet periods are followed by cascading modifications. In addition the maturity of a software project can be measured from the exponent of the distribution of inter-modification time. Finally, the dynamics of a single file displays ageing, the average rate of modifications decaying as a function of time following a power-law.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
  • RERO DOC 8906
Persistent URL
https://folia.unifr.ch/unifr/documents/300597
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