Help getting RecommendBySimilarity Plugin working

I installed and activated the latest version of the recommendBySimilarity plugin from Github. However, I do not see a list of “similar articles” listed on the article pages like I had expected, so something is not working but I’m not sure what. Has anyone successful installed recommendBySimilarity and do you have any recommendations for how to get it working on my site? I’m running OJS on my site. Thanks!