Symposium on Visualization in High Performance Computing

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Visualizing large-scale structure of a million-firms economic network
Tuesday, 03 November
14:15 - 15:30
Kobe Int’l Conference Center, Room 502, Level 5

Visualizing large-scale structure of a million-firms economic network

The real economy in Japan comprises two million firms and billions of links of supplier-customer and other relationships. We challenge to visualize such big data, specifically how firms are connected to each other. We use a dataset of a million of firms and millions of links of supplier-customer and ownership relationships in order to directly observe such a network structure. We discovered interesting features of the economic network. Firms are connected by the links into tightly-knit groups with high density in intra-groups and with lower connectivity in inter-groups, namely by community structures. We found that the features of commu-nity structures are specific to individual industrial sectors, such as manufacturers, retails and wholesales, infra-structure-related sec-tor, health-cares, and so forth. (Figure 1, the representative image attached to this paper is an example of graph drawing in which a million nodes are located with colors representing different indus-trial sectors). In the network, we also visualized how bankruptcies or failures of firms took place during one year right after the Great East Japan Earthquake in 2011.


Yuji Fujita , Turnstone Research

Yoshi Fujiwara , University of Hyogo

Wataru Souma , Nihon University

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