Ranking Popular Items with Newtonian Cooling (Simple Rails Implementation) Posted by keithlee0 on Thursday March 21, 2013 @03:11PM from the kiesto88.github.com dept. http://kiesto88.github.com/blog/2013/03/20/ranking-popular-items-with-newtonian-cooling/ ( Read More... | no comments | 2 points | on HN )