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Beer Recommendations With Graph Databases

Josh Adell explains how to extend a simple recommendation engine to similarity-based collaborative filtering:

Instead of basing recommendations off of one similar rating, I can calculate how similarly you and I rated all the things we have rated, and only get recommendations from you if I have determined we are similar enough in our tastes.

This is much closer to how recommendation engines developed by sites like Amazon or Netflix are working.

Original title and link: Beer Recommendations With Graph Databases (NoSQL database©myNoSQL)

via: http://blog.everymansoftware.com/2012/02/similarity-based-recommendation-engines.html