https://qiita.com/tk-tatsuro/items/10e9dbb3f2cf030e2119
https://www.datarobot.com/jp/blog/inbalanceddata/
https://www.ai-gakkai.or.jp/resource/my-bookmark/my-bookmark_vol37-no3/
https://en.wikipedia.org/wiki/Regression_dilution
https://en.wikipedia.org/wiki/Regression_toward_the_mean
https://academic.oup.com/jrsssa/article/163/2/173/7102308
https://www.bmj.com/content/340/bmj.c2289
https://www.frontiersin.org/articles/10.3389/fspas.2022.924976/
https://stats.stackexchange.com/questions/603435/overestimating-the-lower-values-and-underestimating-the-higher-values-in-regress
https://en.wikipedia.org/wiki/Linear_regression
https://en.wikipedia.org/wiki/Logistic_regression