Heya graph

[Chiyotasuke 274]

Hello everyone! I've made this graph website visualizing all active heya's rikishi and sekitori. SumoDB was the main source of data and the Japanese Wikipedia was useful as well. I am planning on adding past heyas too, so stay tuned. And don't forget to check out the Information tab on the bottom of the page for graph info

https://chiyotasuke.github.io/heya-graph/

Edited August 1, 2022 by Chiyotasuke

[Jakusotsu 5,874]

Nice work!

I take it that only the current instances of heya are present, e.g. Futagoyama starting at 2018.05 when it was re-established by Miyabiyama.

[Chiyotasuke 274]

19 minutes ago, Jakusotsu said:

Nice work!

I take it that only the current instances of heya are present, e.g. Futagoyama starting at 2018.05 when it was re-established by Miyabiyama.

That's right. And I will add the previous Futagoyama and many other closed down heya in later update, I hope many would like to see them

[Seiyashi 4,072]

Nice work!

One suggestion - perhaps consider adding some functionality to group heya by ichimon?

[Chiyotasuke 274]

10 minutes ago, Seiyashi said:

Nice work!

One suggestion - perhaps consider adding some functionality to group heya by ichimon?

Like a toggle button to switch between alphebetically ordered and Ichimon-grouped heya name layout? I think I can do that

[Yamanashi 3,777]

Interesting!  The first thing that caught my eye was the ~50% reduction in rikishi at Isegahama and Sadogatake over the last five years.

[Yarimotsu 548]

That's going straight to my bookmarks. Thanks!

[Chiyotasuke 274]

The site has been updated to add heya that shut down since WWII. A few short-lived heya had little to no data in the DB (like Asashio III's Furiwake beya) so they weren't included. You can also sort heya names now.

I now understood Seiyashi's suggestion. I feel like I should add individual graphs for each ichimon. But I don't know how to implement that yet.

More suggestions and feedback are most welcome https://chiyotasuke.github.io/heya-graph/

Edited August 10, 2022 by Chiyotasuke

[Seiyashi 4,072]

I apologise for being that one guy who's just creating work and not doing it, but if you deliberately select heya that have an intertwined history, you actually get to see, in a somewhat abstract form, the actual movement of rikishi as splitoffs and mergers happen. For example, the infamous Fujishima-Futagoyama merger, and then the absorption of Takanohana into Tokiwayama.

Perhaps it would help if, instead of the previous names and shishos turning up only after a heya is selected, they would appear when you moused over the heya before selecting it? That would definitely be a massive help to anyone using your graph as an accompaniment to e.g. @Asashosakari's occasional rabbit hole spelunking into heya and kabu history.

[Chiyotasuke 274]

1 hour ago, Seiyashi said:

I apologise for being that one guy who's just creating work and not doing it, but if you deliberately select heya that have an intertwined history, you actually get to see, in a somewhat abstract form, the actual movement of rikishi as splitoffs and mergers happen. For example, the infamous Fujishima-Futagoyama merger, and then the absorption of Takanohana into Tokiwayama.

Perhaps it would help if, instead of the previous names and shishos turning up only after a heya is selected, they would appear when you moused over the heya before selecting it? That would definitely be a massive help to anyone using your graph as an accompaniment to e.g. @Asashosakari's occasional rabbit hole spelunking into heya and kabu history.

These are very great ideas. I think it's crucial to show the heya merging, splitoff and such things in the graph to really illustrate the history of the heya. The whole thing needs to be informative yet easy to understand. I also thought of making tooltip with past names and shisho that show up upon hovering over heya names. I'll try to implement them all, but as I'm not that experienced in coding it'll take longer to finish

Edited August 10, 2022 by Chiyotasuke

[Chiyotasuke 274]

I finished the update just now; added extra lines to show rikishi movement and tooltip on heya names. Re the extra lines, lemme know if/how they could be improved - https://chiyotasuke.github.io/heya-graph/

[Jakusotsu 5,874]

Selecting Futagoyama still doesn't show the prevalent era.

[Chiyotasuke 274]

5 hours ago, Jakusotsu said:

Selecting Futagoyama still doesn't show the prevalent era.

It's shown under Takanohana. Do you feel like it's unfair for the previous Futagoyama to be shown that way? My graph sucks a little in that aspect

[Chiyotasuke 274]

No one asked for this, but I just made one for shusshin. Could've made this sooner

https://chiyotasuke.github.io/shusshin-graph/

[Yarimotsu 548]

9 hours ago, Chiyotasuke said:

No one asked for this, but I just made one for shusshin. Could've made this sooner

https://chiyotasuke.github.io/shusshin-graph/

I would've asked for it if I'd thought to. Very well done! This instantly answers my question about when school graduate entries became the fashion.

[Yarimotsu 548]

Interestingly, in the 50s and 60s the northern prefectures dominate (Hokkaido, Akita, Aomori) while in the 80s and 90s the cities dominate (Aichi, Fukuoka, Tokyo, Osaka) - influence of the tournament locations taking over from the traditional sumo stock?

[Chiyotasuke 274]

It's been a while Well, now there is one major update to the site: Genealogy/family tree of heya! I've worked on this for months with long hiatuses but now I'm relieved that it's finished.

Hope you enjoy. The rikishi number graph is on the bottom. I will be updating both charts once a year.

https://chiyotasuke.github.io/heya-graph/

[Asashosakari 18,968]

Great work, and something I've pondered doing for literally 15+ years without ever getting anywhere.

I'm not sure that I agree with the way the "reverse mergers" (for lack of a better term) between Kokonoe/Izutsu in 1977, Futagoyama/Fujishima in 1993 and Takasago/Wakamatsu in 2002 are displayed, as the big-name heya going out of existence and the small-name heya simultaneously changing its name to that of the big-name heya. That's functionally what happened (especially in the 2002 case, where I know for sure that the combined entity resided on the Wakamatsu premises), but it's not the official historical view, which sees it as the big-name heya simply continuing under a new shisho who happened to bring along all the people from the small-name heya he previously ran.

I'll freely admit that I'm not even conclusively sure how to best describe what happened. Did Wakamatsu-beya's history simply end in 2002, or does today's Takasago-beya effectively own the history of both the pre-merger Takasago as well as Wakamatsu (which itself lasted for over 70 years, so it's not trivial)? Hard to say. But "Takasago closed, and Wakamatsu became another Takasago" is definitely the version that's most at odds with the official view. Ditto for the other two cases.

Edited October 30 by Asashosakari

[Chiyotasuke 274]

On 30/10/2024 at 08:49, Asashosakari said:

Great work, and something I've pondered doing for literally 15+ years without ever getting anywhere.

I'm not sure that I agree with the way the "reverse mergers" (for lack of a better term) between Kokonoe/Izutsu in 1977, Futagoyama/Fujishima in 1993 and Takasago/Wakamatsu in 2002 are displayed, as the big-name heya going out of existence and the small-name heya simultaneously changing its name to that of the big-name heya. That's functionally what happened (especially in the 2002 case, where I know for sure that the combined entity resided on the Wakamatsu premises), but it's not the official historical view, which sees it as the big-name heya simply continuing under a new shisho who happened to bring along all the people from the small-name heya he previously ran.

I'll freely admit that I'm not even conclusively sure how to best describe what happened. Did Wakamatsu-beya's history simply end in 2002, or does today's Takasago-beya effectively own the history of both the pre-merger Takasago as well as Wakamatsu (which itself lasted for over 70 years, so it's not trivial)? Hard to say. But "Takasago closed, and Wakamatsu became another Takasago" is definitely the version that's most at odds with the official view. Ditto for the other two cases.

Thank you. It's a great input, which made me realize that those 3 big heyas closing doesn't so seem right, so I updated it so that they continue under the new shisho and Izutsu, Wakamatsu and Fujishima heyas merge with them instead of closing. Accordingly, they are marked with M for "merge" instead of X, which I also did the same with Tomoegata's Ajigawa, Ryogoku's Irumagawa and Futaseyama's Onaruto that I felt were similar cases.