Ranking from pairwise comparisons [duplicate]

Answer 1

For every image, count the number of times it won a duel, and divide by the number of duels it took part in. This ratio is your ranking score.

Example:

A B, A C, A D, B C, B D

Yields

B: 67%, C, D: 50%, A: 33%

Unless you perform a huge number of comparisons, there will be many ties.

Answer 2

Seems like you could just get some kind of numerical ranking system and then just sort based on that. Just borrow the algorithm from a win/loss sport, or chess, and treat each image comparison as a bout.

Did some looking, here's some sample code of what an algorithm like that looks like in Java

And here's a library you can borrow in python

If you search ELO you'll find a version of it in just about any language. Once you get your numerical image rankings, you can sort them any way you like. There are probably other ranking algorithms you could look into for win/loss competition, that was just the first that came up when I googled chess ranking.