RubyFlow The Ruby and Rails community linklog

Ruby on Rails implementation of a (proper) Ranking/Popularity system

We live surrounded rankings everywhere. But for some reasons we developers have just the wrong intuitions on how to calculate “popularity” to sort items in rankings. This is not new, the math has been sorted out since the early 1930’s and I read at least one good post in 2009 about it. So let’s see how to properly calculate popularities in Ruby.

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