Google Colaboratory - LightGBM/Optuna/SHAP
https://colab.research.google.com/drive/1cUOdzkernDUhxbV7QveZqTCgObKmQx2P
Google Colaboratory - PyTorch/Optuna
https://colab.research.google.com/drive/1lO_0cBKVBSfJekuMUZLUTfpz8S2rIxLL
Optuna
https://optuna.org/