Deim Seminar
Title
Consensus clustering in complex networks
Conferenciant
Prof. Santo Fortunato
Professor/a organitzador/a
Alex Arenas
Institution
Aalto University, Espoo, Finland
Date
17-04-2012 12:00
Summary
The community structure of complex networks reveals both their organization and hidden relationships among their constituents.Most community detection methods currently available are not deterministic, and their results typically depend on the specific random seeds, initial conditions and tie-break rules adopted for their execution. Consensus clustering is used in data analysis to generate
stable results out of a set of partitions delivered by stochastic methods. Here we show that consensus clustering can be combined with any existing method in a self-consistent way, enhancing considerably both the stability and the accuracy of the resulting partitions. This framework is also particularly suitable to monitor the evolution of community structure in temporal networks. An application of consensus clustering to a large citation network of physics papers demonstrates its capability to keep track of the birth, death and diversification
of topics.
Place
Laboratori 231
Language
Anglès
