Kaggle competition: https://www.kaggle.com/c/house-prices-advanced-regression-techniques/data
the code of version 3, score: 0.00408, leaderboard: Top 1%
Data analysis, features engineering, ridge, lasso, elasticnet, SVR, xgboost, lightgbm, model stack and GridSearchCV optimization.
Enviroments: macOS 10.15.4, python3.7, sklearn