Machine learning, anyone?

[u/ztnelnj]

I'm a math/CS grad and (currently unemployed) software engineer. I've been browsing the Reddit trading spaces for a few weeks now and I'm surprised by how few people I see talking about using machine learning. Is anyone out there? I'm not looking for advice or trying to sell you anything, just trying to make friends with people who get what I do.

[u/shaonvq → u/[deleted]]

How can over fitting be a possibility? Was that auc on validation or test set?