Nice article on why it is cheating (from a mathematical sense, independent of language) to get scores from the hold-out leader board too many times (plus some m

Nice article on why it is cheating (from a mathematical sense, independent of language) to get scores from the hold-out leader board too many times (plus some methods to mitigate the effect): http://arxiv.org/abs/1502.04585 http://arxiv.org/abs/1502.04585 .