||According to the problem statement, all non-zero probability values should receive a non-zero label, while all zero-valued probabilities should receive a label of 0. However, the ground truth file does not meet this criteria:
There are a few voxels with zero probability, but receiving non-zero ground truth label. E.g., voxel (z, y, x) = (201, 84, 115) is labeled with 19 while having probability 0.
There are also several voxels with non-zero probablility, but receiving zero ground truth label. E. g., voxel (z, y, x) = (332, 153, 49) lies in the training area in a labeled slice, and its probability is 255, but its ground truth label is 0.
This is something, which should be either corrected, or at least announced in the problem statement, since it may cause some weird behavior in some solution implementations and also makes it harder in our offline testers to reproduce the same scores as getting from example submissions.