Driven Data vs Numerai

Driven Data is an open platform for predictive modeling competitions to solve real-world problems using machine learning. The platform hosts competitions for data scientists to build models using datasets on topics like algorithmic lending, satellite images, and hospital readmission rates.

Numerai is a blockchain-based platform that crowdsources machine learning models to predict the stock market. Data scientists build models using anonymized data from Numerai's hedge fund and compete to have their models used.