Sorry my objective is a good algo not just number in your POC.
I hope we can start a discussion about the correct way to do it ;-)
For the contest, I had to make up some rules and I didn't come up with something better than this. But I think we got a lot input and a lot to discuss, evaluate and think about.
I am sure, that Lannister will drop some BTC on this matter in the future (at least I hope so). I just felt I need to make a quick start to get people working on this ... there is nothing more of an incentive than a few tasty BTC ;-)
For now, we ended up with many interesting approaches ... now let's see what we can actually use!