Empirical analysis of collective human behavior for extraordinary events in blogosphere - Yukie Sano; Kenta Yamada; Hayafumi Watanabe; Hideki Takayasu; Misako Takayasu (CoRR, 2011)

Biased diffusion on Japanese inter-firm trading network: Estimation of sales from network structure - Hayafumi Watanabe; Hideki Takayasu; Misako Takayasu (CoRR, 2011)

Statistical properties of fluctuations of time series representing the appearance of words in nationwide blog data and their applications: An example of observations and the modelling of fluctuation scalings of nonstationary time series. - Hayafumi Watanabe; Yukie Sano; Hideki Takayasu; Misako Takayasu (CoRR, 2016)

Ultraslow diffusion in language: Dynamics of appearance of already popular adjectives on Japanese blogs. - Hayafumi Watanabe (CoRR, 2017)

Empirical observations of ultraslow diffusion driven by the fractional dynamics in languages: Dynamical statistical properties of word counts of already popular words. - Hayafumi Watanabe (CoRR, 2018)

A minor extension of the logistic equation for growth of word counts on online media: Parametric description of diversity of growth phenomena in society. - Hayafumi Watanabe (CoRR, 2022)