[IEEE 2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton) - Monticello, IL, USA (2011.09.28-2011.09.30)] 2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton) - Distributed collaborative filtering over social networksIsaacman, Sibren; Ioannidis, Stratis; Chaintreau, Augustin; Martonosi, Margaret · 2011