2012/11/01 by Sadamori Kojaku, Mengqiao Xu, Haoxiang Xia +2 · 1 citation
Computer Science · Engineering · Mathematics · Physics and Astronomy · #Advanced Graph Theory Research #Bipartite graph #Complex Network Analysis Techniques #Complex network #Computer network #Computer science #Construct (python library) #Core (optical fiber) #Core network #Distributed computing #Flow network #Global network #Maritime Ports and Logistics #Mathematical optimization #Mathematics #Mode (computer interface) #Network structure #Robustness (evolution) #Telecommunications #Theoretical computer science #Vehicle Routing Optimization Methods #physics.soc-ph
paper · pdf · doi:10.1038/s41598-018-35922-2
published as Scientific Reports, 9, 404, 2019 · 22 pages, 10 figures and 1 table
openalex publication_date 2012/11/01 · openalex created_date 2016/06/24 · arxiv created 2019/01/25 · arxiv updated 2019/01/29 · openalex updated_date 2026/06/24
Maritime transport accounts for a majority of trades in volume, of which 70% in value is carried by container ships that transit regular routes on fixed schedules in the ocean. In the present paper, we analyse a data set of global liner shipping as a network of ports. In particular, we construct the network of the ports as the one-mode projection of a bipartite network composed of ports and ship routes. Like other transportation networks, global liner shipping networks may have core-periphery structure, where a core and a periphery are groups of densely and sparsely interconnected nodes, respectively. Core-periphery structure may have practical implications for understanding the robustness, efficiency and uneven development of international transportation systems. We develop an algorithm to detect core-periphery pairs in a network, which allows one to find core and peripheral nodes on different scales and uses a configuration model that accounts for the fact that the network is obtained by the one-mode projection of a bipartite network. We also found that most ports are core (as opposed to peripheral) ports and that ports in some countries in Europe, America and Asia belong to a global core-periphery pair across different scales, whereas ports in other countries do not.