Greg Linden is one of The Really Smart People in the world of recommendations. He’s got an excellent post on the newly launched ACM blog.
I’ve had a draft of an essay sitting around for a while titled, “What’s wrong with recommendations?” Greg hits on one of the key points that I’d intended to cover:
In the end, what we want is happy, satisfied users. Will a recommendation engine that minimizes RMSE make people happy?
Check out the full post here.