International alternatives to Kaggle for Data Science / Machine Learning competitions - KDnuggets

We've all heard of Kaggle, but that also means there's more competition -- recently, Kaggle reached 5 million users. Further, not all competitions are open to everyone in the world. "Members of the Kaggle community who are not United States Citizens or legal permanent residents at the time of entry are allowed to participate in the Competition but are not eligible to win prizes. If a team has one or more members who are not prize eligible, then the entire team is not prize eligible." By trying out other competition platforms, you can be a "big fish in a small pond," as there are a lot fewer competitors.