Multiplex networks have become increasingly more prevalent in many fields, and have emerged as a powerful tool for modeling the complexity of real networks. There is a critical need for developing inference models for multiplex networks that can take into account potential dependencies across different layers, particularly when the aim is community detection. We add to a limited literature by proposing a novel and efficient Bayesian model for community detection in multiplex networks. A key feature of our approach is the ability to model varying communities at different network layers. In contrast, many existing models assume the same communities for all layers. Moreover, our model automatically picks up the necessary number of communities at each layer (as validated by real data examples). This is appealing, since deciding the number of communities is a challenging aspect of community detection, and especially so in the multiplex setting, if one allows the communities to change across layers. Borrowing ideas from hierarchical Bayesian modeling, we use a hierarchical Dirichlet prior to model community labels across layers, allowing dependency in their structure. Given the community labels, a stochastic block model (SBM) is assumed for each layer. We develop an efficient slice sampler for sampling the posterior distribution of the community labels as well as the link probabilities between communities. In doing so, we address some unique challenges posed by coupling the complex likelihood of SBM with the hierarchical nature of the prior on the labels. An extensive empirical validation is performed on simulated and real data, demonstrating the superior performance of the model over single-layer alternatives, as well as the ability to uncover interesting structures in real networks.

Arash Amini

Marina Paez

Lizhen Lin

Bayesian Analysis

贝叶斯分析是国际贝叶斯分析学会的电子期刊。它旨在发表广泛的文章，在某些理论或应用背景下展示或讨论贝叶斯方法。该期刊欢迎提交新的计算和统计方法的投稿；对现有方法的批判性审查和讨论；历史观点；重要科学或政策应用领域的描述；实例探究;以及实验设计、数据收集、数据共享或数据挖掘的方法。提交的评估基于内容的重要性和沟通的有效性。讨论论文通常由主编选择，或由编辑建议，在定期提交的论文中。此外，《期刊》鼓励个人作者提交手稿以作为讨论文件考虑。

Bayesian Analysis is the electronic journal of the International Society for Bayesian Analysis. It aims to publish a wide range of articles that showcase or discuss Bayesian methods in various theoretical or applied contexts. The journal welcomes submissions of new computational and statistical methods; critical reviews and discussions of existing methods; historical perspectives; descriptions of significant scientific or policy application areas; case studies; as well as methods for experimental design, data collection, data sharing, or data mining. Submitted papers are evaluated based on the importance of their content and the effectiveness of their communication. Discussion papers are typically selected by the editor-in-chief or recommended by editors as part of regularly submitted papers. Additionally, Bayesian Analysis encourages individual authors to submit manuscripts for consideration as discussion papers.

《Bayesian Analysis》是国际贝叶斯分析学会的电子期刊，旨在发表广泛的文章，展示或讨论贝叶斯方法在各种理论或应用背景下的应用。该期刊欢迎提交新的计算和统计方法的研究；对现有方法的批判性审查和讨论；历史视角；重要科学或政策应用领域的描述；实例研究；以及实验设计、数据收集、数据共享或数据挖掘的方法。提交的论文将根据内容的重要性和沟通的有效性进行评估。讨论论文通常由主编选择，或由编辑建议，作为定期提交的论文的一部分。此外，《Bayesian Analysis》鼓励个人作者提交手稿，以供作为讨论文件考虑。

Category	Quartile
数学	2
数学, 数学跨学科应用	1
数学, 统计学与概率论	2

Hierarchical Stochastic Block Model for Community Detection in Multiplex Networks

ivySCI AI Smartly Parses PDF, Answers Researchers' Questions, and Helps You Understand Papers in Seconds

Journal Info

Category	Quartile
STATISTICS & PROBABILITY	1