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q-fin.GN2011★ 19 cited
Biased diffusion on Japanese inter-firm trading network: Estimation of sales from network structure
Hayafumi Watanabe, Hideki Takayasu, Misako Takayasu
To investigate the actual phenomena of transport on a complex network, we analysed empirical data for an inter-firm trading network, which consists of about one million Japanese fi…
physics.soc-ph2011★ 53 cited
Empirical analysis of collective human behavior for extraordinary events in blogosphere
Yukie Sano, Kenta Yamada, Hayafumi Watanabe +2
To uncover underlying mechanism of collective human dynamics, we survey more than 1.8 billion blog entries and observe the statistical properties of word appearances. We focus on w…