[maffydub]

Open Mined (http://openmined.org/) are looking at this from the other angle - sharing the encrypted neural network with their users so that they can train it without sharing their data at all - the encrypted gradients are computed by the user and collated and decrypted by the company that wants to train the neural network.

(Not affiliated in any way, but went to a really interesting talk on this a few weeks ago as part of the London Machine Learning meetup group - https://www.meetup.com/London-Machine-Learning-Meetup/events...)

[sandGorgon]

oh - its very similar to numerai. Pretty cool. I think this is their library - https://github.com/OpenMined/R-Homomorphic-Encryption-Packag... (they havent ported this to python, so are having to use R-bridge to use it in jupyter. I wonder why).