This week I presented “Introduction to Machine Learning with XGBoost” to my stats colleagues. Why do I want to learn XGBoost and introduce to other statisticians? XGBoost is one of the most popular machine learning algorithms these days. It has won the RAAD (Roche Advanced Analytics Data) challenge among 81 teams across 19 Roche sites in early 2018! Among the 81 teams, different methods (including logistic regression) have been tried, the top 3 teams all used XGBoost!