CrowdAI (
https://www.crowdai.org) is an open source platform for hosting challenges on Open Data for Open Science. It aims to engage a community of machine learning enthusiasts and researchers to help solve problems from big and small research groups in academia, humanitarian organizations, and also Industry partners who share the spirit of Open Data and Open Research. It aspires to empower many more community members to both understand and use many of these complex machine learning paradigms to solve their own problems. It dreams about eventually becoming an open source repository of machine learning solutions for a diversity of problems in different domains.