Meta Stack Exchange is where users like you discuss bugs, features, and support issues that affect the software powering all 158 Stack Exchange communities.

What is meta?
Here's how it works:
  1. Any Stack Exchange user can ask a question
  2. The community provides support, votes on ideas, and reports bugs
  3. Your voice helps shape the way Stack Exchange operates

According to the tooltip of the 'interesting' tab, interesting questions are

"questions that may be of interest to you based on your history and tag preferences"

Does Stack Overflow use a recommendation engine or just some sql sort/filter?

share|improve this question

migrated from Oct 25 '12 at 10:28

This question came from our site for professional and enthusiast programmers.

up vote 4 down vote accepted

In short, first drop any topics you ignored or attract low-attention, then apply the scoring formula:

  • your interesting tags +1,500 per interesting tag, up to +2,000 total
  • your top 40 scoring tags maximum of +1,000 per tag (scaled), up to +2,000 total
  • question score +200 × score, up to +1,000 total
  • total answer score -200 × score, up to -1,000 total
  • number of answers -200 × answers, up to -1,000 total
  • number of views -15 × views, up to -1,000 total
  • question last activity date -1 × (seconds / 15)

Those make 90% of the interesting questions. The other 10% comes from some random pick.

It's a simple but effective solution.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .