The U-shape observed when measuring model performance on testset as a function of its flexibility does not hold during training deep learning models. (WHAT!!!?????. Is the world going mad?. Not really.)
Some useful resources for playing with epidemic models (Mostly COVID-19 of course). From an explanation of the dificulties behind building an epidemic models to the different approaches followed by researchers and enthusiasts (me) here in my home town, Mendoza City.
Beware of Random Forest GINI index for feature importance. Some other resources related with feature selection such as how to use PCA and the problems (or not) behind colinearity.