How Similar is Rating Similarity to Content Similarity?

Osman Baskaya Tevfik Aytekin How Similar is Rating Similarity to Content Similarity? 27-29 2012 RUE@RecSys https://ceur-ws.org/Vol-910/paper6.pdf conf/recsys/2012rue db/conf/recsys/rue2012.html#BaskayaA12