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- W2914113355 abstract "This paper studies the problem of optimization in multi-agent systems where each agent seeks to minimize the sum of all agents' objective functions without knowing others' functions. Under the requirement of privacy, each of them needs to keep its objective function private from other agents and potential attackers. We design a completely distributed algorithm, which achieves differential privacy by perturbing states and adjusting directions with decaying Laplace noise. The proposed algorithm ensures that an attacker who intercepts the messages cannot obtain the objective function of any agent even if it bribes all other agents. A constant stepsize is adopted to improve the convergence rate. It is shown that the algorithm converges almost surely and the convergence point is independent of the noise added to the states. The trade-off between differential privacy and convergence accuracy is also characterized. Finally, simulations are conducted to validate the efficiency of the proposed algorithm." @default.
- W2914113355 created "2019-02-21" @default.
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- W2914113355 date "2018-12-01" @default.
- W2914113355 modified "2023-10-17" @default.
- W2914113355 title "Consensus-based Distributed Optimization in Multi-agent Systems: Convergence and Differential Privacy" @default.
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- W2914113355 doi "https://doi.org/10.1109/cdc.2018.8619119" @default.
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