Facebook Patent: Socioeconomic group classification based on user features [pdf]

Facebook patent application (US 20180032883) for "classifiers input information about a user and output a probability that the user belongs to a given socioeconomic group".

Relevant Twitter thread: https://twitter.com/WolfieChristl/status/960630738256367617

Copy-and-paste friendly version of the patent application, but without images: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=H...

Limited news coverage, e.g., http://expressnewsline.com/2018/02/05/facebook-to-develop-sy...