To clarify, is using supervised learning for, for instance, classifying objects in scenes forbidden?

It seems that it should be, but this isn’t explicitly stated in the rules. I thought I should clarify, so that it can be added into the rules if needed, as any team using such a strategy would have an unfair advantage.

Such a strategy was used by the winner of the unity tower challenge.

Since it is forbidden to use your own dataset, I guess this exact approach is not possible.