Here's another notebook, much simpler than the last. Decent statistical power on the validation data (70% val acc vs 56% for the baseline) but scores 0 on the leaderboard The previous notebook managed a non-zero LB score at least (ranked #7 att) https://
kaggle.com/fchollet/per-p
ixel-classification-2-gpus/edit
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Notebook with strong validation accuracy but zero leaderboard score
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