practically faced and I think many of you might face in in other scenarios is there are many good networks out there for example a unit which in medical imaging quite a lot of people use FCN they have a lot of meta parameters a lot of different architectures you can choose that we influence the behavior and then really it's at least at live to us it quite often looks like it's very hard to make predictions which model will work really well for a given task so one option is to use I guess something you all very familiar with