You'll find a detailed answer on paperswithcode, selecting the "Recommendation task": https://paperswithcode.com/datasets?task=recommendation-systems&page=1 ht

You'll find a detailed answer on paperswithcode, selecting the "Recommendation task": https://paperswithcode.com/datasets?task=recommendation-systems&page=1 https://paperswithcode.com/datasets?task=recommendation-syst... Like many have already said, this is mostly an academic answer (even if some of the papers are written by the industry). In the industrial world, the answer is a lot more subtle. Each domain has its own constraints and the best method will vary. Also, keep in mind that in some domains like ad tech, the whole measurement process is messed up by the attribution mechanism, which attributes a sale to the last click (which clearly is a poor indication of whether the recommendation engine is doing a good job -- the industry settled on this attribution mechanism because it is easy to audit).