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The fundamental advantages of temporal networks

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Science  24 Nov 2017:
Vol. 358, Issue 6366, pp. 1042-1046
DOI: 10.1126/science.aai7488

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  • The advantage of temporal network will give an evidence to finish railway operation under depopulation
    • Shino Iwami, Project Researcher, University of Jyväskylä

    Li et al. described the advantage of temporal networks, which tend to shift easily f such as social networks and biological networks (1).
    When I visited the former Yugoslavia countries in 2016, the railway networks were inconvenient networks, for example, by service cancellations and broken connections at the borders. However, the bus network was a flexible network that bus drivers receive and deliver parcels and newspapers in addition to carry out people. When long-distance buses stop between bus stops, passengers got on and off and parcels were passed on and off. That is, the buses can change nodes frequently. Therefore, the railway network is a static network, and the bus network is a temporal network. (Surely, from a very long-term view, the railway network is a temporal network. Depending on countries and urban areas, there is a rule that buses must stop only at bus stops.)
    In Japan, railway operations continue to the level where profitability is not appropriate, and decreasing population in the countryside has led to pressure on corporate performance. In Hokkaido of Japan, the railway company gave up the operation (2) while some local governments require keeping the railway. To persuade them, (1) is available. The depopulation means that edge widths decrease and the railway network becomes similar to the static network in (1). Thus, the evidence that the temporal network requires less energy than the static network has suggested that the burden of operati...

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    Competing Interests: None declared.