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Decentralized Collaborative Learning of Personalized Models over Networks
Abstract : We consider a set of learning agents in a col-laborative peer-to-peer network, where each agent learns a personalized model according to its own learning objective. The question addressed in this paper is: how can agents improve upon their locally trained model by communicating with other agents that have similar objectives? We introduce and analyze two asynchronous gossip algorithms running in a fully decentralized manner. Our first approach , inspired from label propagation, aims to smooth pre-trained local models over the network while accounting for the confidence that each agent has in its initial model. In our second approach, agents jointly learn and propagate their model by making iterative updates based on both their local dataset and the behavior of their neighbors. To optimize this challenging objective, our decentralized algorithm is based on ADMM.
Cited literature [21 references]
https://hal.inria.fr/hal-01533182
Contributor : Team Magnet Connect in order to contact the contributor
Submitted on : Tuesday, June 6, 2017 - 9:29:21 AM
Last modification on : Friday, January 21, 2022 - 3:13:06 AM
Long-term archiving on: : Thursday, September 7, 2017 - 12:32:31 PM
Contributor : Team Magnet Connect in order to contact the contributor
Submitted on : Tuesday, June 6, 2017 - 9:29:21 AM
Last modification on : Friday, January 21, 2022 - 3:13:06 AM
Long-term archiving on: : Thursday, September 7, 2017 - 12:32:31 PM
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