Timeline for Graduation, site closure, and a clearer outlook on the health of SE sites
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 2, 2015 at 5:54 | comment | added | Jon Ericson Staff | @NathanTuggy: I believe the Area 51 average is calculated based on the last 7 days. It certainly changes from one day to the next more dramatically than would be possible for an entire site lifetime of data. (Note: the public data is always a few days old, so queries against it won't be exact.) The criteria we use is based on a sliding window over several months to avoid spikes such as when students return to school and that sort of thing. Pops did quite a bit of backtesting on the criteria. | |
| Jun 2, 2015 at 3:20 | comment | added | Nathan Tuggy | @nhinkle: Setting the query for the full 1224 days shows 1.54 QPD, higher than the displayed QPD of 1.2 and almost as high as the default 365-day QPD of 1.65. (Reducing it to 90 days shows 1.34, which is disturbing, and at 45 days it matches the display with 1.2. So perhaps that's already implemented with a rolling 45-day window, not a 365-day window.) | |
| Jun 2, 2015 at 3:10 | comment | added | nhinkle | I created a SEDE query for this. | |
| Jun 2, 2015 at 3:02 | comment | added | nhinkle | @Keen in that case, that statistic needs to be shown somewhere. Area51 only shows the simple (#Q)/(days) number. | |
| Jun 2, 2015 at 2:50 | comment | added | user158781 | It's a moving average. How many questions over the last week or month or quarter. It's not simply (# of questions)/(age of site). That's why they say 'consistently reaches 10 questions per day'. | |
| Jun 2, 2015 at 2:48 | history | answered | nhinkle | CC BY-SA 3.0 |