that instead of looking for the performance of each model we should optimize for the performance of the ensemble by Infirmary and we tried to to art and models that were improving the final in fact another thing that have versus let's let in the models of repeat a bit but have have that helped us in the finally movements we also because we have only one hour to run the car locks so instead of decreasing the learning rate after each epoch to epoch we were increasing the batch size there is a nice paper about skis that you can find on the internet