@misc{cryptoeprint:2019:281,
    author = {Phillipp Schoppmann and Adria Gascon and Mariana Raykova and Benny Pinkas},
    title = {Make Some ROOM for the Zeros: Data Sparsity in Secure Distributed Machine Learning},
    howpublished = {Cryptology ePrint Archive, Report 2019/281},
    year = {2019},
    url = {https://eprint.iacr.org/2019/281},
}