@inproceedings{petroni2014gasgd,
  title={GASGD: stochastic gradient descent for distributed asynchronous matrix completion via graph partitioning.},
  author={F. Petroni and L. Querzoni},
  booktitle={Proceedings of the 8th ACM Conference on Recommender Systems (RecSys)},
  pages={241--248},
  year={2014},
  organization={ACM}
}