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license: GPL-2.0-or-later
title: 'ppsbm: Clustering in Longitudinal Networks'
version: 1.0.0
doi: 10.32614/CRAN.package.ppsbm
abstract: Stochastic block model used for dynamic graphs represented by Poisson processes.
  To model recurrent interaction events in continuous time, an extension of the stochastic
  block model is proposed where every individual belongs to a latent group and interactions
  between two individuals follow a conditional inhomogeneous Poisson process with
  intensity driven by the individuals’ latent groups. The model is shown to be identifiable
  and its estimation is based on a semiparametric variational expectation-maximization
  algorithm. Two versions of the method are developed, using either a nonparametric
  histogram approach (with an adaptive choice of the partition size) or kernel intensity
  estimators. The number of latent groups can be selected by an integrated classification
  likelihood criterion. Y. Baraud and L. Birgé (2009). <https://doi.org/10.1007/s00440-007-0126-6>.
  C. Biernacki, G. Celeux and G. Govaert (2000). <https://doi.org/10.1109/34.865189>.
  M. Corneli, P. Latouche and F. Rossi (2016). <https://doi.org/10.1016/j.neucom.2016.02.031>.
  J.-J. Daudin, F. Picard and S. Robin (2008). <https://doi.org/10.1007/s11222-007-9046-7>.
  A. P. Dempster, N. M. Laird and D. B. Rubin (1977). <http://www.jstor.org/stable/2984875>.
  G. Grégoire (1993). <http://www.jstor.org/stable/4616289>. L. Hubert and P. Arabie
  (1985). <https://doi.org/10.1007/BF01908075>. M. Jordan, Z. Ghahramani, T. Jaakkola
  and L. Saul (1999). <https://doi.org/10.1023/A:1007665907178>. C. Matias, T. Rebafka
  and F. Villers (2018). <https://doi.org/10.1093/biomet/asy016>. C. Matias and S.
  Robin (2014). <https://doi.org/10.1051/proc/201447004>. H. Ramlau-Hansen (1983).
  <https://doi.org/10.1214/aos/1176346152>. P. Reynaud-Bouret (2006). <https://doi.org/10.3150/bj/1155735930>.
authors:
- family-names: Giorgi
  given-names: Daphné
  email: daphne.giorgi@sorbonne-universite.fr
- family-names: Matias
  given-names: Catherine
  email: catherine.matias@math.cnrs.fr
- family-names: Rebafka
  given-names: Tabea
  email: tabea.rebafka1@agroparistech.fr
- family-names: Villers
  given-names: Fanny
  email: fanny.villers@sorbonne-universite.fr
repository: https://daphnegiorgi.r-universe.dev
commit: a56fc99651b77e38c120381f0f081345722b5ee2
url: https://cran.r-project.org
date-released: '2025-01-15'
contact:
- family-names: Giorgi
  given-names: Daphné
  email: daphne.giorgi@sorbonne-universite.fr