@INPROCEEDINGS {,
title = {On the Gravity Recommendation System},
author = {G\'abor Tak\'acs and Istv\'an Pil\'aszy and Botty\'an N\'emeth and Domonkos Tikk},
booktitle = {Proc. of the of the KDD Cup and Workshop 2007 (KDD 2007)},
year = {2007},
month = {August},
location = {San Jose, California, USA},
pages = {22--30},
}