Plesently surprised w/ the choice of algorithms AWS provides. They skip classic MF and go straight to the good stuff:

* Item-Item CF (workhorse amazon original from 2003 w/ modern enhancements) * Deep Pooling Models (à la Covington. YouTube Deep Rec.)

Although I'm a bit perplexed as to the difference between Deep-FM Recipe and the FFNN Recipe as it describes the same thing...

https://docs.aws.amazon.com/personalize/latest/dg/working-wi...