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- W4311565528 abstract "This paper presents a special type of distributed optimization problems, where the summation of agents' local cost functions (i.e., global cost function) is convex, but each individual can be non-convex. Unlike most distributed optimization algorithms by taking the advantages of gradient, the considered problem is allowed to be non-smooth, and the gradient information is unknown to the agents. To solve the problem, a Gaussian-smoothing technique is introduced and a gradient-free method is proposed. We prove that each agent's iterate approximately converges to the optimal solution both with probability 1 and in mean, and provide an upper bound on the optimality gap, characterized by the difference between the functional value of the iterate and the optimal value. The performance of the proposed algorithm is demonstrated by a numerical example and an application in privacy enhancement." @default.
- W4311565528 created "2022-12-27" @default.
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- W4311565528 date "2021-04-22" @default.
- W4311565528 modified "2023-10-18" @default.
- W4311565528 title "A Gradient-Free Distributed Optimization Method for Convex Sum of Non-Convex Cost Functions" @default.
- W4311565528 doi "https://doi.org/10.48550/arxiv.2104.10971" @default.
- W4311565528 hasPublicationYear "2021" @default.
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