Journal
CHAOS
Volume 29, Issue 3, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5086059
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Funding
- National Natural Science Foundation of China (NNSFC) [11601430,11631014, 11871311]
- National Science Foundation of China (NSFC) [61673151]
- ZJNSF [LR18A050001]
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Many systems are dynamic and time-varying in the real world. Discovering the vital nodes in temporal networks is more challenging than that in static networks. In this study, we proposed a temporal information gathering (TIG) process for temporal networks. The TIG-process, as a node's importance metric, can be used to do the node ranking. As a framework, the TIG-process can be applied to explore the impact of temporal information on the significance of the nodes. The key point of the TIG-process is that nodes' importance relies on the importance of its neighborhood. There are four variables: temporal information gathering depth n, temporal distance matrix D, initial information c, and weighting function f. We observed that the TIG-process can degenerate to classic metrics by a proper combination of these four variables. Furthermore, the fastest arrival distance based TIG-process (fad-tig) is performed optimally in quantifying nodes' efficiency and nodes' spreading influence. Moreover, for the fad-tig process, we can find an optimal gathering depth n that makes the TIG-process perform optimally when n is small. Published under license by AIP Publishing.
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