Yuji Ariyasu
Data Scientist
Greater Tokyo Area Japan
Summary
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SeniorYuji Ariyasu is a Data Scientist based in the Greater Tokyo Area with nine years of experience and a reputation as a Kaggle Grandmaster, combining competition-grade modeling with applied business impact. Currently at Aillis, Inc., he translates advanced machine learning techniques into production-ready solutions for real-world problems. His background suggests strong skills in feature engineering, ensemble methods, and rigorous evaluation practices honed through high-level Kaggle competition work. Though primarily focused on data science rather than broad software engineering, he maintains an active GitHub presence and a practical, experiment-driven approach to problem solving. Colleagues can expect a results-oriented practitioner who blends research curiosity with an emphasis on deployable, reproducible pipelines.
9 years of coding experience
Github Skills (19)
categorical4
mcs4
monte-carlo3
k-fold3
stochastic2
testing2
prediction-model2
targets2
python1
machine-learning1
prophet1
docker1
pytorch1
docker-compose1
forecasting1
Programming languages (4)
Github contributions (5)
yujiariyasu/GoApps
Aug 2018 - Oct 2018
Contributions:61 commits, 22 pushes, 1 branch in 1 month
yujiariyasu/qtq
Oct 2018 - Mar 2020
Contributions:730 commits, 258 PRs, 316 pushes in 1 year 5 months
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