older or newer version of below packages should theoretically work fine
numpy 1.13.3
pandas 0.20.3
sklearn 0.19.1
keras 2.1.1
tensorflow 1.4.0
xgboost 0.6
lightgbm 2.0.10
Put unzipped data in input
python nn_model290.py to get a nn model that scores 0.290X
python gbm_model291.py to get a gbm model that scores 0.291X
simple average of the two gives about 0.2939 on private LB, which is good enough for 2nd place