Null Models and Community Detection in Multi-Layer Networks
Null Models and Community Detection in Multi-Layer Networks
复制标题
多层网络中的空模型和社区检测
DOI:
10.1007/s13171-021-00257-0
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Chen, Yuguo
中科院分区:
文献类型:
--
作者:
Paul, Subhadeep;Chen, Yuguo
Multi-layer networks of multiplex type represent relational data on a set of entities (nodes) with multiple types of relations (edges) among them where each type of relation is represented as a network layer. A large group of popular community detection methods in networks are based on optimizing a quality function known as the modularity score, which is a measure of the extent of presence of module or community structure in networks compared to a suitable null model. Here we introduce several multi-layer network modularity and model likelihood quality function measures using different null models of the multi-layer network, motivated by empirical observations in networks from a diverse field of applications. In particular, we define multi-layer variants of the Chung-Lu expected degree model as null models that differ in their modeling of the multi-layer degrees. We propose simple estimators for the models and prove their consistency properties. A hypothesis testing procedure is also proposed for selecting an appropriate null model for data. These null models are used to define modularity measures as well as model likelihood based quality functions. The proposed measures are then optimized to detect the optimal community assignment of nodes (Code available at: https://u.osu.edu/subhadeep/codes/ ). We compare the effectiveness of the measures in community detection in simulated networks and then apply them to four real multi-layer networks.
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DOI:
--
发表时间:
2014-10
期刊:
--
影响因子:
--
作者:
Qiuyi Han;Kevin S. Xu;E. Airoldi
通讯作者:
Qiuyi Han;Kevin S. Xu;E. Airoldi
DOI:
10.1145/2464464.2464471
发表时间:
2013-01
期刊:
ArXiv
影响因子:
--
作者:
Derek Greene;P. Cunningham
通讯作者:
Derek Greene;P. Cunningham
影响因子:
1.6
作者:
Bazzi, Marya;Porter, Mason A.;Howison, Sam D.
通讯作者:
Howison, Sam D.
影响因子:
12.5
作者:
De Domenico, Manlio;Sole-Ribalta, Albert;Arenas, Alex
通讯作者:
Arenas, Alex
DOI:
--
发表时间:
2011
期刊:
Workshop on Algorithms and Models for the Web-Graph
影响因子:
--
作者:
M. Rocklin;Ali Pinar
通讯作者:
Ali Pinar