http://www.goratings.org/ now has historical ratings lists

[hyperpape]

Any chance that we might be able to construct historical graphs by selecting player names?

[Rémi]

Any chance that we might be able to construct historical graphs by selecting player names?

This won't be possible in the short term, sorry. Right now, the web site is 100% static, so it would not be easy to add this feature.

I have plans to add an history page by country, and also an history page for ladies, though. I need more data from macelee to do that. I will ask him again. Another addition that would not be very difficult would be to produce ratings for the gogod database.

[macelee]

Hi Rémi,

I just supplied a separate script for you to collect player information from Go4Go. This should enable you to create country lists and female player list. Check your email.

macelee

[Rémi]

Thanks for the data. I added flags and gender data to the rating lists now.

I will soon produce a history page with the ranking graphs of top ladies. But it seems the gender data of go4go is wrong for Meng Tailing, at least. I am sure macelee will fix it soon. Please let us know if you see any mistake: http://www.goratings.org/

[Rémi]

I fixed the mistake manually. Also, I believe Tao Xin is not a lady either. There is the history page of ladies:
http://www.goratings.org/ladies/

[macelee]

Error fixed in Go4Go database.

Are you able to write the data on your home page in a suitable format that I can fetch from an URL. I want to create a page on Go4Go containing the top ranked players. I will of course give credit and links back to your site.

[John Fairbairn]

Remi: The lists look VERY dubious to me, apart from maybe the top one or two. For example, the list for 2000-01-01 has Hyeon Mi-chin in 8th place. That beggars belief, and on checking I see that GoGoD has just 4 games for her in 1999 and she scored just 1-3 against rather undistinguished opposition. Given that she'd only been a pro for 4 years and took that long to get from 1-dan to 2-dan, previous results are hardly likely to have bumped her up. That seems confirmed by known results from GoGoD prior to 1999 - she scored 2-8.

That suggests to me something fishy about the maths, but even if the maths is correct (e.g. all players above her had even worse results - hardly seems possible, though), surely a minimum number of games should be required. I believe 30 is the usual criterion?

What have I missed?

The females you thought were male are indeed male in the GoGoD onomasticon. You will need to be aware also of a couple of cases where there exist both male and female pros with the same westernised name. Tang Yi is the only one I think of at the moment.

[Rémi]

Thank you John for your feedback.

In the go4go database, she has a 6-1 result from 1997 to 2001, that's why her 2000 rating is good.

I agree that 7 games can't produce a very accurate result. I will try to rank players based on the lower bound of the confidence interval instead. That should prevent a lucky player from entering the top.

[Rémi]

Error fixed in Go4Go database.

Are you able to write the data on your home page in a suitable format that I can fetch from an URL. I want to create a page on Go4Go containing the top ranked players. I will of course give credit and links back to your site.

The current rating list is available to anybody in json format at that url:
http://www.goratings.org/ratings.json
Anybody should feel free to use this data (and cite goratings.org as the source).

macelee: I sent an email to you with more problems that need to be fixed.

[sparky314]

Hi Remi,

Looks like there's a linking issue on the main page (http://www.goratings.org/). If I click on the Ke Jie (#1) for example, it takes me to Li Zhangyuan (http://www.goratings.org/players/1154.html).

The history page works fine.

[Rémi]

Hi Remi,

Looks like there's a linking issue on the main page (http://www.goratings.org/). If I click on the Ke Jie (#1) for example, it takes me to Li Zhangyuan (http://www.goratings.org/players/1154.html).

The history page works fine.

Thanks for your report. Please refresh the index page to clear your cache. I changed the player ids to match those of go4go.net.

[sparky314]

Awesome, thanks!

[macelee]

The current rating list is available to anybody in json format at that url:
http://www.goratings.org/ratings.json
Anybody should feel free to use this data (and cite goratings.org as the source).

Rémi, can you please reformat the output a bit. It is not a valid JSON at the moment. Try the validator at jsonlint.com

[Rémi]

Rémi, can you please reformat the output a bit. It is not a valid JSON at the moment. Try the validator at jsonlint.com

It should be OK now.

[John Fairbairn]

In the go4go database, she has a 6-1 result from 1997 to 2001, that's why her 2000 rating is good.

Remi: The 2000 rating list is headed 2000-01-01. So not only should it not reflect the results for 2001, surely it shouldn't include the results for 2000 either. On that basis, go4go has just two games, for 1997, scoring 1-1. It's well known I'm not a numbers guy, so what's the trap I've fallen into?

Another male-female pair to watch for is Yi Chi-hyeon.