A simple recommendation engine for Ruby on Rails. Read this blog post for more on the inspiration behind the project: https://www.geoffreylitt.com/2017/03/19/building-a-rails-recommendation-engine.html
Do you want to say '1' as inscrutably as possible? This web app will generate a complicated mathematical expression for the integer of your choice. Check out the code here: https://github.com/enjeck/num2math.
This is a demo of a private machine learning protocol on the Ethereum blockchain, which implements a zk-SNARK proof that verifies a private linear regression model has a certain accuracy under a public dataset.