Atushi Ishikawa

According to our database, Atushi Ishikawa authored at least 9 papers between 2015 and 2023.

Collaborative distances:

• Dijkstra number of six.
• Erdős number of four.

2023

Generating Individual Trajectories Using GPT-2 Trained from Scratch on Encoded Spatiotemporal Data.

Taizo Horikomi, Shouji Fujimoto, Atushi Ishikawa, Takayuki Mizuno

CoRR, 2023

RoBERTa Trained from Scratch on GPS Trajectory Data.

Shouji Fujimoto, Atushi Ishikawa, Takayuki Mizuno

Proceedings of the IEEE International Conference on Web Intelligence and Intelligent Agent Technology, 2023

2022

Interpolation of non-random missing values in financial statements' big data using CatBoost.

Shouji Fujimoto, Takayuki Mizuno, Atushi Ishikawa

J. Comput. Soc. Sci., November, 2022

Employee Number Dependence in Labor Productivity Distribution.

Atushi Ishikawa, Takayuki Mizuno, Shouji Fujimoto

Rev. Socionetwork Strateg., 2022

Copula-Based Synthetic Data Generation in Firm-Size Variables.

Shouji Fujimoto, Atushi Ishikawa, Takayuki Mizuno

Rev. Socionetwork Strateg., 2022

2021

Quasi-Static Variation of Power-Law and Log-Normal Distributions of Urban Population.

Atushi Ishikawa, Shouji Fujimoto, Arturo Ramos, Takayuki Mizuno

Entropy, 2021

2017

Comparison between spatial distributions of tweet base and population in Japan.

Shouji Fujimoto, Atushi Ishikawa, Takayuki Mizuno

Proceedings of the 2017 IEEE International Conference on Big Data (IEEE BigData 2017), 2017

2016

Nowcast of firm sales using POS data toward stock market stability.

Atushi Ishikawa, Shouji Fujimoto, Takayuki Mizuno

Proceedings of the 2016 IEEE International Conference on Big Data (IEEE BigData 2016), 2016

2015

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

Proceedings of the 2015 IEEE International Conference on Big Data (IEEE BigData 2015), Santa Clara, CA, USA, October 29, 2015