The application for the opencampus courses of the next semester is open now. As always, the courses are open to everyone. You can check out the full program here.

Considering machine learning there will be two courses:

Both courses are hands-on and include the completion of final project that you will have to work on in a team and and present at the end of the course.
To get an idea of the projects you can checkout here what the participants from the past semester were working on.

There will be a maximium of 35 participants in each course. Typically, the number of applicants is much higher. The decision on participation will be based on the motivation letter that the applicants have to write.