Alex Shpenev

Senior Data Research Scientist @penn_csnbd studying social networks among other things.

[Simon Kuestenmacher @simongerman600]

You are not nostalgic about the 90s, 80s, or 70s. You are nostalgic about your own youth - whenever that was…

[Rona Wang @ronawang]

imagine waking up to see that scientists used your photo as an example of an ugly person

[alex hayes @alexpghayes]

**new blog post ✍️**

overfitting: a guided tour 🚌

i present some intuition about overfitting, explain why it matters for both prediction and inference, and show why sample splitting is so important #statstwitter #DataScience

https://t.co/M7EllBnhUn