Acknowledgements
The authors would like to thank Dzmitry Huba, Hubert Eichner, Kallista Bonawitz, Mark Simborg, Peter Kairouz, Prem Eruvbetine, Sarah de Haas for their extensive feedback and editing on the blog post itself, and the teams at Google that helped with algorithm design, infrastructure implementation, and production maintenance. In particular, we would like to thank the collaborators who directly contributed to this effort: Adria Gascon, Albert Cheu, Allie Culp, Andri Saar, Artem Lagzdin, Brendan McMahan, Brett McLarnon, Chloé Kiddon, Chunxiang Zheng, Conrad Grobler, Edo Roth, Emily Glanz, Ernesto Ocampo, Grace Ni, Haicheng Sun, Ivan Petrov, Jeremy Gillula, Jianpeng Hou, Joe Woodworth, Juliette Pluto, Katharine Daly, Katsiaryna Naliuka, Marco Gruteser, Maya Spivak, Mira Holford, Nova Fallen, Octavian Suciu, Rakshita Tandon, Shumin Zhai, Stanislav Chiknavaryan, Stefan Dierauf, Steve He, Tiziano Santoro, Tom Binder, Ulyana Kurylo, Wei Huang, Yanxiang Zhang, Yu Xiao, Yuanbo Zhang, Zachary Charles, Zheng Xu, Zhimin Yao, and Zoe Gong. This work was supported by Corinna Cortes, Four Flynn, Blaise Aguera y Arcas, and Yossi Matias.
