Authors
Konstantin Avrachenkov, Maximilien Dreveton, Lasse Leskelä
Publication date
2023/11/30
Journal
Ieee Transactions On Network Science And Engineering
Publisher
IEEE
Description
This article focuses on spectral methods for recovering communities in temporal networks. In the case of fixed communities, spectral clustering on the simple time-aggregated graph (i.e., the weighted graph formed by the sum of the interactions over all temporal snapshots) does not always produce satisfying results. To utilise information carried by temporal correlations, we propose to employ different weights on freshly appearing and persistent edges. We show that spectral clustering on such weighted graphs can be explained as a relaxation of the maximum likelihood estimator of an extension of the degree-corrected stochastic block model with Markov interactions. We also study the setting of evolving communities, for which we use the prediction at time as an oracle for inferring the community labels at time . We demonstrate the accuracy of the proposed methods on synthetic and real data sets.
Scholar articles
K Avrachenkov, M Dreveton, L Leskelä - Ieee Transactions On Network Science And …, 2023