Recommendations at Etsy

Robert Hall, one of the data engineers at Etsy, a large online craft market place, has written a comprehensive overview of how they manage recommendations. It’s a very interesting piece in that it’s quite open particularly as relates to something which could be considered commercially sensitive, and it broaches on both the mathematics and infrastructure side of things.

Read it here. The Etsy Code as Craft blog is well worth a read in ongoing terms.