Hippocampus's Garden

The Kaggle SETI competition has ended. Did kagglers succeed in finding aliens? Let's see.

It's so easy for me to forget how to setup Jupyter in a newly created Poetry / Pipenv environment. So, here it is.

読書記録とともに2020年度（＝入社1年目）を雑に振り返ります。

This post shows you how to set up a cheap and comfortable computing environment for Kaggle using Colab Pro and Google Drive. Happy Kaggling!

This post attempts to take a deeper look at F1 score. Do you know that, for calibrated classifiers, the optimal threshold is half the max F1? How come? Here it's explained.

コロナ以前に書かれた「広義・新型コロナウイルス関連書籍」をいくつか読んだので、良かったものを紹介します。自然科学寄りの選書です。

This post steps forward to multiple linear regression. The method of least squares is revisited --with linear algebra.

This post summarizes the basics of simple linear regression --method of least squares and coefficient of determination.

『新しいLinuxの教科書』のまとめと感想です．

Is the sample correlation coefficient an unbiased estimator? No! This post visualizes how large its bias is and shows how to fix it.