This is an idea I had to make a simple ranking system based off of the seven big Japanese titles. The ranking system of Remi Coulom (and other such Elo / Glicko / etc. systems)
These are all fine qualities, but I made this other ranking system as a comparison (and for fun).
The tournaments in question: the big seven titles, ie. the Honinbo, Meijin, Oza, Kisei, Tengen and Gosei.
The time period of measurement: 2014-01-01 to 2016-12-31.
The weighting: 3 points for winning the title match. 1 point for winning the candidates' tournament but not the match.
In comparison to the Goratings algorithm, Hsu Chiayuan (Goratings Japan #4) is nowhere to be seen; neither is Shibano Toramaru (GR JP #5). In contrast, we see Murakawa Daisuke (GR JP #18) ranked much more favourably. Ichiriki Ryo (GR JP #2) and Yu Zhengqi (GR JP #3) are ranked lower than with GR ranking.