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Analysis of hubs in large multidimensional networks (Rapporti tecnici, manuali, carte geologiche e tematiche e prodotti multimediali)

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Analysis of hubs in large multidimensional networks (Rapporti tecnici, manuali, carte geologiche e tematiche e prodotti multimediali) (literal)

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Berlingerio M.; Coscia M.; Giannotti F.; Monreale A.; Pedreschi D. (2009)
Analysis of hubs in large multidimensional networks
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ABSTRACT: Hubs in complex networks are important nodes in terms of their connectivity to the whole network. In a mono-dimensional network, i.e., where only one kind of interaction is possible among nodes, the concept of hub has been widely studied, and it is at the basis of many important applications such as web search and epidemic outbreaks. However, in real world scenarios, networks are multidimensional, i.e., several possible kinds of connections exist among the nodes. In this setting, the concept of a hub should take into account the multiple dimensions, that can have varying influence on the connectivity of each node, and whose interplay can be relevant to assess the importance of an entity. In this paper, we tackle the problem of analyzing the relevance of dimensions for node connectivity, and how this relevance analysis can highlight hubs with peculiar, interesting behaviors in a large network. To this end, we consider the multidimensional generalization of the degree, namely t (literal)

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