Mischa Lisovyi questions

Mischa Lisovyi answers

• xgboost.train versus XGBClassifier
• Interpreting sklearns' GridSearchCV best score
• How to speed up nested cross validation in python?
• XGboost: cannot pass validation data for eval_set in pipeline
• How Bagging in LightGBM works
• xgboost predict_proba : How to do the mapping between the probabilities and the labels
• Why does `categorical_feature` of lightgbm not work?
• LightGBM: ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
• XGBRegressor: change random_state no effect
• light gbm - python API vs Scikit-learn API