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Graph of 2017 Regionals

forbes

By: forbes
New: 09-08-2017 06:04 PM
Updated: 09-08-2017 06:04 PM
Views: 1189 times


Graph of 2017 Regionals

The edge weight is the number of teams that attended both regionals & edges with a weight of 1 are ignored

Modularity: 0.584
Number of Communities: 14

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09-08-2017 07:02 PM

Karthik


Unread Re: pic: Graph of 2017 Regionals

This is pretty cool. I made something similar for the 2017 Ontario districts in January. There was some movement of teams after I generated the graphs, so the connectivity numbers won't be perfect. I did two versions, one with labelled edges and one with weighted edges.





Full sized versions here.



09-08-2017 08:32 PM

cbale2000


Unread Re: pic: Graph of 2017 Regionals

Quote:
Originally Posted by Karthik View Post
This is pretty cool. I made something similar for the 2017 Ontario districts in January. There was some movement of teams after I generated the graphs, so the connectivity numbers won't be perfect. I did two versions, one with labelled edges and one with weighted edges.





Full sized versions here.
Not gonna lie, it looks like you're trying to summon a demon with these...



09-08-2017 11:42 PM

SenorZ


Unread Re: pic: Graph of 2017 Regionals

I'm sort of surprised at the connection between San Diego and Las Vegas.
Thanks for the map.



09-09-2017 12:13 AM

Brian M


Unread Re: pic: Graph of 2017 Regionals

If a team goes to 3 regionals, does it add a line from each regional connecting it as if 3 teams went to 2 regionals? (Sort of like a triangle)



09-09-2017 12:24 AM

Brian Maher


Unread Re: pic: Graph of 2017 Regionals

How were communities derived?



09-09-2017 09:26 AM

forbes


Unread Re: pic: Graph of 2017 Regionals

Quote:
Originally Posted by Brian M View Post
If a team goes to 3 regionals, does it add a line from each regional connecting it as if 3 teams went to 2 regionals? (Sort of like a triangle)
Yes, but each line would only show up as long as one other team went to that pair of regionals (due to the edge weight restriction I added)



09-09-2017 09:33 AM

forbes


Unread Re: pic: Graph of 2017 Regionals

Quote:
Originally Posted by Brian Maher View Post
How were communities derived?
I generated the communities using the modularity statistic in Gephi which apparently uses an algorithm from this paper. I adjusted the resolution parameter to around 0.3 to get the number of communities I wanted.



09-09-2017 10:41 AM

GeeTwo


Unread Re: pic: Graph of 2017 Regionals

Quote:
Originally Posted by forbes View Post
I generated the communities using the modularity statistic in Gephi which apparently uses an algorithm from this paper. I adjusted the resolution parameter to around 0.3 to get the number of communities I wanted.
Apparently not that algorithm, as it does not have a resolution parameter. Also, if I'm reading the algorithm and the graph correctly, the first pass would have moved the Hawaii Regional out of community with the Australian Regionals and into the SoCal/Las Vegas community. Thanks for the link; quite enlightening!



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