Centralities in High Order Networks
Resumo
We propose a method for computing centralities based on shortest paths in time-varying, multilayer, and time-varying multilayer networks using MultiAspect Graphs (MAG). Thanks to the MAG abstraction, these high order networks are represented in a way that is isomorphic to a directed graph. We then show that well-known centrality algorithms can be adapted to the MAG environment in a straightforward manner. Moreover, we show that, by using this representation, pitfalls usually associated with spurious paths resulting from aggregation in time-varying and multilayer networks can be avoided.
Referências
Freeman, L. C. (1977). A Set of Measures of Centrality Based on Betweenness. Sociometry, 40(1):35 – 41.
Kivela, M., Arenas, A., Barthelemy, M., Gleeson, J. P., Moreno, Y., and Porter, M. a. (2014). Multilayer networks. Journal of Complex Networks, 2(3):203–271.
Nicosia, V., Tang, J., Musolesi, M., Russo, G., Mascolo, C., and Latora, V. (2012). Components in time-varying graphs. Chaos, 22(2):023101.
Pan, R. and Saramäki, J. (2011). Path lengths, correlations, and centrality in temporal networks. Physical Review E, 84(1):1–10.
Ribeiro, B., Perra, N., and Baronchelli, A. (2013). Quantifying the effect of temporal resolution on time-varying networks. Scientific reports, 3:3006.
Wehmuth, K., Fleury, É., and Ziviani, A. (2016). On MultiAspect graphs. Theoretical Computer Science, 651:50–61.
Wehmuth, K., Fleury, E., and Ziviani, A. (2017). Multiaspect graphs: Algebraic representation and algorithms. Algorithms, 10(1).
