Discrete-Valued Latent Preference Matrix Estimation
                 with Graph Side Information

                        Changhun Jo 1 Kangwook Lee 2

             Abstract                have started to use a social graph to resolve the cold start
                                 problem. For instance, Jamali & Ester (2010) provide an
   Incorporating graph side information into recom-      algorithm that handles the cold start problem by exploiting
   mender systems has been widely used to be ...