I like the approach explained by etsy engineers in the blog post https://codeascraft.com/2014/11/17/personalized-recommendations-at-etsy/ https://codeascraft.co

I like the approach explained by etsy engineers in the blog post https://codeascraft.com/2014/11/17/personalized-recommendations-at-etsy/ https://codeascraft.com/2014/11/17/personalized-recommendati...