It sounds like you're talking about the idea of introducing noise in order to prevent stagnation and make sure learning continues. One of the trivial ways to d

It sounds like you're talking about the idea of introducing noise in order to prevent stagnation and make sure learning continues. One of the trivial ways to do this with a recommender system is to change the priority of some search results so that, say, a page 5 result shows up on page 1. You also do something similar with introducing noise in nns for image processing.