The relation between firm age distributions and the decay rate of firm activities in the united states and Japan. - Atushi Ishikawa; Shouji Fujimoto; Takayuki Mizuno; Tsutomu Watanabe (IEEE BigData, 2015)

Nowcast of firm sales using POS data toward stock market stability. - Atushi Ishikawa; Shouji Fujimoto; Takayuki Mizuno (IEEE BigData, 2016)

Comparison between spatial distributions of tweet base and population in Japan. - Shouji Fujimoto; Atushi Ishikawa; Takayuki Mizuno (IEEE BigData, 2017)

Quasi-Static Variation of Power-Law and Log-Normal Distributions of Urban Population. - Atushi Ishikawa; Shouji Fujimoto; Arturo Ramos; Takayuki Mizuno (Entropy, 2021)

Copula-Based Synthetic Data Generation in Firm-Size Variables. - Shouji Fujimoto; Atushi Ishikawa; Takayuki Mizuno (Rev. Socionetwork Strateg., 2022)

Employee Number Dependence in Labor Productivity Distribution. - Atushi Ishikawa; Takayuki Mizuno; Shouji Fujimoto (Rev. Socionetwork Strateg., 2022)

Interpolation of non-random missing values in financial statements' big data using CatBoost. - Shouji Fujimoto; Takayuki Mizuno; Atushi Ishikawa (J. Comput. Soc. Sci., 2022)

RoBERTa Trained from Scratch on GPS Trajectory Data. - Shouji Fujimoto; Atushi Ishikawa; Takayuki Mizuno (WI/IAT, 2023)

Generating Individual Trajectories Using GPT-2 Trained from Scratch on Encoded Spatiotemporal Data. - Taizo Horikomi; Shouji Fujimoto; Atushi Ishikawa; Takayuki Mizuno (CoRR, 2023)