tea.mathoverflow.net - Discussion Feed (10,000-th question approacheth)

Joseph O'Rourke comments on "10,000-th question approacheth" (14578)

Joseph O'Rourke — Fri, 20 May 2011 08:12:21 -0700

@Qiaochu: Good point re math.SE!

Qiaochu Yuan comments on "10,000-th question approacheth" (14577)

Qiaochu Yuan — Fri, 20 May 2011 07:38:31 -0700

@Joseph: I think it's more likely that the majority of new users don't post. The trend in number of posts per day may also in part be due to math.SE taking up the attention of some of the more active users.

Mark Meckes comments on "10,000-th question approacheth" (14576)

Mark Meckes — Fri, 20 May 2011 07:17:36 -0700

@Kevin: Did you also notice the drop around the beginning of the fall term in North America?

Joseph O'Rourke comments on "10,000-th question approacheth" (14575)

Joseph O'Rourke — Fri, 20 May 2011 05:06:49 -0700

Let me echo the thanks to Scott for preparing these charts! Fascinating data! The big surprise to me is the nearly constant 25 new users per day. Coupled with the near-constant 100 posts per day, this suggests that the pool of *active* users is nearly constant. Perhaps the new arrivals are balanced by departures.

an_mo_user comments on "10,000-th question approacheth" (14574)

an_mo_user — Fri, 20 May 2011 03:14:41 -0700

Scott Morrison, thanks for posting this! I was really curious to see some data of this form, and even thought about asking whether it is available somewhere.

Kevin Lin comments on "10,000-th question approacheth" (14573)

Kevin Lin — Thu, 19 May 2011 23:49:54 -0700

Cool! The drops on new year's days are funny.

Scott Morrison comments on "10,000-th question approacheth" (14572)

Scott Morrison — Thu, 19 May 2011 23:11:38 -0700

These are all with a 2 week averaging window.

Questions per day

Posts per day

New users per day

Comments per day

Votes per day

Joseph O'Rourke comments on "10,000-th question approacheth" (14562)

Joseph O'Rourke — Thu, 19 May 2011 11:15:21 -0700

And now the 20,000-th question approaches. Roughly 1K questions per month, 35 questions per day. This makes me wonder whether graphs vs. time of the number of questions, and/or the number of users, have ever been constructed from the dumps? (Re # users, see http://tea.mathoverflow.net/discussion/706/user-10000/ ).

Anton Geraschenko comments on "10,000-th question approacheth" (8671)

Anton Geraschenko — Sun, 29 Aug 2010 20:19:30 -0700

@Mariano: you get slightly different numbers by looking at the different tabs on the questions page. I get 9924 "hot" questions, but 10055 questions in the "newest", "active", and "votes" tabs, so that's probably the right number. I don't know what makes a question "hot". These numbers don't count deleted questions, but the post IDs do.

Mariano comments on "10,000-th question approacheth" (8668)

Mariano — Sun, 29 Aug 2010 19:42:40 -0700

How can you tell it's the 10000th question? MO tells me there are 9,923 questions (and I guess the post ID, 36926, also counts everything else?)

Harry Gindi comments on "10,000-th question approacheth" (8639)

Harry Gindi — Fri, 27 Aug 2010 16:53:27 -0700

Will Jagy comments on "10,000-th question approacheth" (8638)

Will Jagy — Fri, 27 Aug 2010 14:54:01 -0700

And the winner, by MathMonkey, is:

http://mathoverflow.net/questions/36926/robust-black-box-function-minimization-with-extremely-expensive-cost-function

Will Jagy comments on "10,000-th question approacheth" (8620)

Will Jagy — Wed, 25 Aug 2010 20:49:55 -0700

The darkness drops again but now I know
One hundred centuries of stony sleep
Were vexed to nightmare by a rocking cradle,
And what rough beast, its hour come round at last,
Slouches towards Bethlehem to be born?

Steve Huntsman comments on "10,000-th question approacheth" (8619)

Steve Huntsman — Wed, 25 Aug 2010 19:17:24 -0700

@VP: the 1729th question has already been asked, alas.

VP comments on "10,000-th question approacheth" (8618)

VP — Wed, 25 Aug 2010 19:00:04 -0700

Is it going to be 10000 or 10*1024? Either one seems mathematically unremarkable, in concordance with the silliness of ribbon-cutting on this occasion, especially if the jubilarian per chance turns out to be of the HELP!! I CANT DO THIS PROBLEM variety.

Steve Huntsman comments on "10,000-th question approacheth" (8617)

Steve Huntsman — Wed, 25 Aug 2010 18:21:36 -0700

I was thinking about the "10K get" also. Maybe we could collectively decide on a question (ICM-related?) to ask.

Joseph O'Rourke comments on "10,000-th question approacheth" (8615)

Joseph O'Rourke — Wed, 25 Aug 2010 17:20:03 -0700

Soon. Hope it's a good one! Ceremony? Or let it pass unnoticed.