I recently spent a while working on a pretty fun problem over at Stack Exchange: predicting what tags you’re going to be active answering in.
Confirmed some suspicions, learned some lessons, got about a 10% improvement on answer posting from the homepage (which I’m choosing to interpret as better surfacing of unanswered questions).
Why do we care?
Stack Overflow has had the curious problem of being way too popular for a while now. So many new questions are asked, new answers posted, and old posts updated that the old “what’s active” homepage would cover maybe the last 10 minutes. We addressed this years ago by replacing the homepage with the interesting tab, which gives everyone a customized view of stuff to answer.
The interesting algorithm (while kind of magic) has worked pretty well, but the bit where we take your top tags has always seemed a…
View original post 1,645 more words