Nate Cohn

Nate Cohn @Nate_Cohn

@gelliottmorris I think you're overfitting models on a small dataset and using regularization and out-of-sample cross-validation to delude yourself into thinking that's not what your doing. It just doesn't come close to approximating real world uncertainty — PolitiTweet.org

Nate Cohn @Nate_Cohn

@gelliottmorris Here's maybe the normie way to look at it: when you keep tweeting about how well some choice validates, and constantly emphasize the *statistical* tools you choose to avoid overfitting, not the analytical ones, that scares me and indicates that you're falling into a trap — PolitiTweet.org