See also the following links:

▎ENGLISH

Importance of Feature Selection in Machine Learning
▸ https://www.aretove.com/importance-of-feature-selection-in-machine-learning

Feature Selection Why & How Explained
▸ https://towardsdatascience.com/feature-selection-why-how-explained-part-1-c2f638d24cdb

Feature Selection - Wikipedia
▸ https://en.wikipedia.org/wiki/Feature_selection

▎日 本 語

特徴量選択のまとめ
▸ https://qiita.com/shimopino/items/5fee7504c7acf044a521

特徴選択とは？機械学習の予測精度を改善させる必殺技「特徴選択」を理解しよう
▸ https://www.codexa.net/feature-selection-methods/

特徴量選択 - Wikipedia
▸ https://ja.wikipedia.org/wiki/特徴選択