Detecting structural changes in longitudinal network data

Jong Hee Park, Yunkyu Sohn

研究成果: Article

抜粋

Dynamic modeling of longitudinal networks has been an increasingly important topic in applied research. While longitudinal network data commonly exhibit dramatic changes in its structures, existing methods have largely focused on modeling smooth topological changes over time. In this paper, we develop a hidden Markov network change-point model (HNC) that combines the multilinear tensor regression model (Hoff, 2011) with a hidden Markov model using Bayesian inference. We model changes in network structure as shifts in discrete states yielding particular sets of network generating parameters. Our simulation results demonstrate that the proposed method correctly detects the number, locations, and types of changes in latent node characteristics. We apply the proposed method to international military alliance networks to find structural changes in the coalition structure among nations.

元の言語English
ページ(範囲)133-157
ページ数25
ジャーナルBayesian Analysis
15
発行部数1
DOI
出版物ステータスPublished - 2020 3 1

ASJC Scopus subject areas

  • Statistics and Probability
  • Applied Mathematics

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