xgboost 完全调参指南

http://www.2cto.com/kf/201607/528771.html

 xgboost：

 https://www.analyticsvidhya.com/blog/2016/03/complete-guide-parameter-tuning-xgboost-with-codes-python/

gbm：

https://www.analyticsvidhya.com/blog/2016/02/complete-guide-parameter-tuning-gradient-boosting-gbm-python/