Hey, I have some questions regarding this, feel free to clarify if I'm wrong somewhere, I don't do this for a living:
Problem statement
Obviously, the goal of LoL is to win the game, and whether you achieved the goal is measured by exactly that: Win or defeat at the end of the game. Of course, different players will contribute different amounts to the outcome of a game: A 15/5 vayne likely contributed more to the win than the 0/13 warmogs rush yuumi top, or in case of a defeat, the 0/13 yuumi top likely contributed more to the loss than the 15/5 Vayne.
It would be great to quantify everyone's skill level in a game based on their performance, so that better players gain more LP (and lose less LP), while worse players lose more LP (and gain less LP).
The problem is that there are many avenues to winning the game, and it's hard to figure out who contributed positively, who contributed negatively and by how much.
An approach is to train a mo...