Data Scientist TJO in Tokyo

Data science, statistics or machine learning in broken English


Simple analytics work fast, but cannot avoid third-party effects

(The original posts in Japanese version are here and here ) In Japan, from my own experience, there may be a dichotomy between "analytics" and "data science". It has been said that real business matters require rapid analyses and rapid act…

Pitfall of "regression to the mean" in growth hacking

(The original post in Japanese version is here) In several marketing teams that I've worked on or from not a few people in the other companies for marketing, I've heard some complaints as follows: "We're working hard to improve and optimiz…