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Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics|September 21, 2011
Predicted and verified deviations from Zipf's law in ecology of competing productsRyohei Hisano, Didier Sornette, Takayuki MizunoPlos One|July 12, 2023
Gaussian hierarchical latent Dirichlet allocation: Bringing polysemy backTakahiro Yoshida, Ryohei Hisano, Takaaki OhnishiApplied Network Science|November 17, 2018
The gradual evolution of buyer-seller networks and their role in aggregate fluctuationsRyohei Hisano, Tsutomu Watanabe, Takayuki Mizuno, et al.Plos One|June 14, 2013
High quality topic extraction from business news explains abnormal financial market volatilityRyohei Hisano, Didier Sornette, Takayuki Mizuno, et al.Pageof 1