کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6956892 1451914 2018 10 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Robust decentralized dynamic optimization at presence of malfunctioning agents
ترجمه فارسی عنوان
بهینه سازی دینامیکی غیرمتمرکز در حضور عوامل ناسازگار
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی
This paper considers the problem of tracking a network-wide solution that dynamically minimizes the summation of time-varying local cost functions of network agents, when some of the agents are malfunctioning. The malfunctioning agents broadcast faulty values to their neighbors, and lead the optimization process to a wrong direction. To mitigate the influence of the malfunctioning agents, we propose a total variation (TV) norm regularized formulation that drives the local variables of the regular agents to be close, while allows them to be different with the faulty values broadcast by the malfunctioning agents. We give a sufficient condition under which consensus of the regular agents is guaranteed, and bound the gap between the consensual solution and the optimal solution we pursue as if the malfunctioning agents do not exist. A fully decentralized subgradient algorithm is proposed to solve the TV norm regularized problem in a dynamic manner. At every time, every regular agent only needs one subgradient evaluation of its current local cost function, in addition to combining messages received from neighboring regular and malfunctioning agents. The tracking error is proved to be bounded, given that variation of the optimal solution is bounded. Numerical experiments demonstrate the robust tracking performance of the proposed algorithm at presence of the malfunctioning agents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 153, December 2018, Pages 24-33
نویسندگان
, , ,
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
سفارش ترجمه تخصصی
با تضمین قیمت و کیفیت