XGBoost tutorial in Python
Understand how we can use XGBoost with Python

and configure: http://machinelearningmastery.com/configure-gradient-boosting-algorithm/
and Tune Learning rate: http://machinelearningmastery.com/tune-learning-rate-for-gradient-boosting-with-xgboost-in-python/
and with AWS: http://machinelearningmastery.com/train-xgboost-models-cloud-amazon-web-services/
 
 
Understanding XGBoost Model on Otto Dataset
Very simple explanaition about XGBoost