yano_pres/prep/26Loss_Optimization/q

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First guess Loss of the Model on the training Data
How to evaluate this?
Train many models, look at the average AUC score.
For the alternative, take groups of 20 models, and look at the AUC score of the best model.
Is there a meaningfull difference between results? Give result as z\_score (#(m_1-m_2)/sqrt(s_1**2+s_2**2)#)
This difference depends a lot on the dataset
->even a really good z\_score does not mean much (sometimes #LessThan(30,z)#)
(repeat with two histones)