Train a system to predict the target information about the test data.
You can use any technique you like, such as
artificial neural networks,
support vector machines, or
k-nearest neighbors classifiers.
Here are some resources to help you get started. And don't forget about the contest forum as a source of discussion.
Once you have built your system, you can submit answers for a "quiz set"
and see your scores reflected immediately on the Leaderboard.
