Past a certain threshold, additional links to an item decrease its score rather than increase it. This is useful because you've probably already heard of (or will hear of) the most popular stuff. The recommendation system instead tries to find things that you aren't already finding on your own.
http://www.crummy.com/software/UltraGleeper/IntroPaper.html
Past a certain threshold, additional links to an item decrease its score rather than increase it. This is useful because you've probably already heard of (or will hear of) the most popular stuff. The recommendation system instead tries to find things that you aren't already finding on your own.