Latent Space Modeling of Hypergraph Data
超图数据的潜在空间建模AI 解读 ↓
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超图数据的潜在空间建模AI 解读 ↓
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The increasing prevalence of relational data describing interactions among a target population has motivated a wide literature on statistical network analysis.In many applications, interactions may involve more than two members of the population and this data is more appropriately represented by a hypergraph.In this article, we present a model for hypergraph data that extends the well-established latent space approach for graphs and, by drawing a connection to constructs from computational topology, we develop a model whose likelihood is inexpensive to compute.A delayed acceptance MCMC scheme is proposed to obtain posterior samples and we rely on Bookstein coordinates to remove the identifiability issues associated with the latent representation.We theoretically examine the degree distribution of hypergraphs generated under our framework and, through simulation, we investigate the flexibility of our model and consider estimation of predictive distributions.Finally, we explore the application of our model to two real-world datasets.