I've just made a map of tags for CrossValidated.

In short: tag size is related to tag popularity and edges are related to tag co-occurrences in questions (or more precisely: the observed/expected ratio, see Is there a term for $P(A\cap B)/[P(A)P(B)]$?).

For me it looks as a "snapshot" of topics and scope of this SE site. So if you want to you it in any way to promote Stats.SE - feel free!

Also, if you have comments how to improve its usefulness or niceness to our community, I would appreciate them (but bear in mind that I have no color esthetics).

Tag Map for Stats.SE

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Nice example, what do the colors symbolize? –  Andy W Nov 1 '12 at 15:24
    
@AndyW Different communities, as detected by wiki.gephi.org/index.php/Modularity with Resolution=1.0. –  Piotr Migdal Nov 1 '12 at 15:28
    
Nice! For myself, I'm so happy to see how you all have adopted and supported the [machine-learning] community on here. It's now one of your largest tags! But seriously, this is super cool I'm sharing it with the team. –  Aarthi Nov 1 '12 at 16:17
    
@Aarthi Nice to hear it! :) And congratulations for the machine-learning community building. –  Piotr Migdal Nov 1 '12 at 17:17
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This is fantastic! Nicely done! –  Kyle. Nov 1 '12 at 23:54
    
I agree with Kyle. Great work ! –  steffen Nov 2 '12 at 7:29
    
I expected R and regression tags to belong to the same group. –  mpiktas Nov 2 '12 at 8:30
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Hi Piotr, would you be interested in disseminating this info on the blog? I know it is a little late to help voting, but this would be wonderful material to talk alittle bit more about. Feel free to stop by the Skewed Distribution chat room if you are interested. –  Andy W Nov 2 '12 at 18:40
    
@AndyW Thanks for suggestion and invitation! Yeah, for the competition is a bit late, but anyway, it seems to be a nice idea (I'm planing to work on the tag graph stuff, as I have a few more ideas). –  Piotr Migdal Nov 2 '12 at 22:55
    
That homework tag is awfully conspicuous =P –  casperOne Dec 9 '12 at 6:24
    
@PiotrMigdal. Nice work. Do you intend to update this in the future (maybe when it complete 1 year old?)? That would be nice. Thanks –  Andre Silva Sep 15 '13 at 18:42
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@AndreSilva Very likely. But this time I will try to do it interactive. –  Piotr Migdal Sep 15 '13 at 19:09

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