Darkness 2010-04-28 12:00:00 UTC
 
Twilight 2010-04-29 12:00:00 UTC
 
Daylight 2010-04-30 12:00:00 UTC
 
Finish 2010-05-05 12:00:00 UTC

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In the final minutes all the secret tricks, squirreled away for the last desperate sprint, come flying into the daylight at last. We saw strong finishes from Sergey Y., Yi Cao, Abhisek Ukil, and srach. But in the end, Hannes Naudé prevailed, closing the contest with a smashing blow that knocked a whopping tenth of a percent off the score. In the past Hannes has won (together with his sometimes comrade-in-arms Cobus Potgieter) two mid-contest prizes, but this is his first Grand Prize. His hauntingly named Overfitting is a fool's game stayed atop the grinding queue for hours, daring anyone to displace it. None could.

Congratulations, Hannes, on a job well done!

On the newsgroup, Hannes says some of his techniques included intentionally overfitting the dataset, something for which I have a deep seated dislike. I hope we can get him to write about his winning entry along with a digression on the nature of robustness and brittleness in machine learning. It's clear that the contest is maddeningly prone to overfitting, but it's also hard to banish from any contest or benchmark. As always, we are looking for ways to make the next contest better, and now is a good time to reflect on things we could improve about the interface and the problem. How might we encourage a richer exploration of the solution space without damaging the fun back-and-forth nature of tweak battles? Another big puzzle for us here is how to make the contest more appealing to the confused and curious crowds who watch from the sidelines. How would you turn the contest into a better spectator sport? Tell us in the newsgroup, or here in the comments, or use the User Voice page we set up for this purpose.

As always, thanks to everyone for joining us, and we hope to see you next time.

>> More from the Contest Blog

Top Submissions
Submit Date Rank Title Player Results CPU Time Score
May 05 15:38 1 Overfitting is a fool's game Hannes Naudé 13878650 62.676 27766.5
May 05 15:58 2 DeepCat9 Sergey Y. 13879977 61.583 27768.4
May 05 15:59 3 final effort 4 to 0.1 Yi Cao 13881972 69.076 27777.6
May 05 15:58 4 DeepCat9 Sergey Y. 13884800 60.987 27777.8
May 05 15:56 5 final effort 8 to 0.5 Yi Cao 13881981 69.394 27778.0

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