About Adam

Adam Slez is an Assistant Professor in the Department of Sociology at the University of Virginia. While much of his work is historical, it often involves forays into the world of network analysis, multilevel models, and spatial econometrics.

Do you ever find yourself asking yourself questions like…

  • What the hell is a Hessian and how do I get R to invert it?
  • How do I gather mass quantities of Twitter data in real-time? [then later] Whoa, what the crap do I do with 12 million tweets?
  • What does a freaking “KeyError” mean, Python?

These are the kinds of questions which plague us. Bad Hessian is a blog dedicated to the nerdiest details of quantitative and computational social science. We have plenty of questions and maybe even a few answers. At the very least we have lots of code.