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A comment on Numerai – A hedge fund built by a global community of anonymous data scientists. Parent comment

Re:Numerai – A hedge fund built by a global community of ano... by ikeboy on Sunday October 16, 2016 @02:27PM (#12720086)
The "predictions" are submitted only knowing a portion of the dataset, but the winners are chosen based on the entire dataset, which is supposed to prevent overfitting.
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Re:Numerai – A hedge fund built by a global community of ano... by mikbob on Sunday October 16, 2016 @03:46PM (#12720553)
Winners are chosen based on a part of the test dataset which the user never gets feedback on/never is able to see the true values of during the competition round - so it's very difficult to overfit to that private set.
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