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New “activity” sorting metric

By max.wainwright on Oct. 19, 2016, noon GMT

In a small, but we think quite useful, upgrade, sorting by “activity” now sorts in a more sophisticated way:

  • Each question has an activity score A
  • When a new prediction is made, this increments A by one.
  • When a new comment is made, this increments A by 10.
  • A decays exponentially with a half-life of 12 hours.

Sorting by “activity” now does a descending sort in A. In practice, questions with new comments should be at the top, questions with more new comments will be even higher, and questions with a lot of new predictions will also feature high on the list.

Also, a sort of all questions by activity is now the default under “featured.”

Let us know how this is working — we can easily tweak the parameters.