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作者：Tedesco, Francesco; Franze, Giuseppe; Casavola, Alessandro
作者单位：University of Calabria
摘要：A novel and original distributed reputation mechanism is here proposed for a class of networked systems characterized by two distinct groups of nodes: user agents and service providers (servers/resources). The proposed methodology is in charge of intercepting those resources that have the highest quality of service (QoS) on the basis of their reputation (trust) shared among agents. Such a reputation may change over the time mainly influenced by changing performance indexes and other events. As...
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作者：Zhang, Tianliang; Deng, Feiqi
作者单位：South China University of Technology
摘要：This article corrects some errors existing in Definitions 3.2 and 4.1 and Theorem 4.1. of the reference [1].
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作者：Rabi, Maben
作者单位：Ostfold University College
摘要：We study a relay feedback system (RFS) having an ideal relay element and a linear, time-invariant, second-order plant. The relay element is modeled as an ideal on-off switch. And the plant is modeled using a transfer function that as follows: first, is Hurwitz stable, second, is proper, third, has a positive real zero, andfourth, has a positive dc gain. We analyze this RFS using a state-space description, with closed-form expressions for the state trajectory from one switching time to the next...
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作者：Rego, Francisco Castro; Pu, Ye; Alessandretti, Andrea; Aguiar, A. Pedro; Pascoal, Antonio M.; Jones, Colin N.
作者单位：Universidade de Coimbra; Universidade de Lisboa; Universidade do Porto; University of Melbourne; Swiss Federal Institutes of Technology Domain; Ecole Polytechnique Federale de Lausanne
摘要：This article addresses the problem of simultaneous distributed state estimation, and control of linear systems with linear state feedback, subjected to process, and measurement noise, under the constraints of quantized, and rate-limited network data transmission. In the set-up adopted, sensors and actuators communicate through a network with a strongly connected topology. Unlike the case of centralized linear systems, for which the separation principle holds, the above practical assumption pre...
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作者：Bikas, Lampros N.; Rovithakis, George A.
作者单位：Aristotle University of Thessaloniki
摘要：In a networked control system (NCS) environment, where all closed-loop signals (control and state) are quantized, we consider the problem of establishing prescribed, transient, and steady-state, performance guarantees on the output tracking error (minimum convergence rate, maximum steady-state error). The controlled system is of high relative degree, multi-input multi-output (MIMO), uncertain, nonlinear, and time-varying. The proposed control solution is of low-complexity, in the sense that no...
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作者：Costa Alberto, Luis Fernando; Siqueira, Daniel S.; Bretas, Newton Geraldo; Chiang, Hsiao-Dong
作者单位：Universidade de Sao Paulo; Cornell University
摘要：Nonlinear dynamical systems exhibiting complex structure in their limit sets, such as chaotic and closed orbits, do not admit energy functions. The theory of generalized energy functions, which may assume positive derivative in some bounded sets, appears as an alternative to study the asymptotic behavior of solutions of these systems. In this article, a generalized energy function and a complete characterization of the stability boundary and stability region are developed for a class of third-...
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作者：Lin, Feng; Wang, Le Yi; Chen, Wen; Polis, Michael P.
作者单位：Wayne State University; Wayne State University; Oakland University
摘要：In this article, we investigate controllability of hybrid systems. We use hybrid machines to model such hybrid systems. The model consists of an automaton and a linear time-invariant system. The control goal is to drive the continuous state from any initial state to any final state. To achieve this goal, controls at both the discrete-event level and the continuous-variable level are used. Control at the discrete-event level can force some forcible events, and disable some controllable events. ...
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作者：Gambuzza, Lucia Valentina; Frasca, Mattia
作者单位：University of Catania
摘要：We consider the problem of steering a multiagent system to multiconsensus, namely a regime where groups of agents agree on a given value, which may be different from group to group. We first address the problem by using distributed proportional controllers that implement additional links in the network modeling the communication protocol among agents and introduce a procedure for the optimal selection of them. Both the cases of single integrators and of second-order dynamics are taken into acc...
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作者：Su, Lili; Vaidya, Nitin H.
作者单位：Massachusetts Institute of Technology (MIT); Georgetown University
摘要：We consider the problem of multiagent optimization wherein an unknown subset of agents suffer Byzantine faults and thus behave adversarially. We assume that each agent i has a local cost function f(i), and the overarching goal of the good agents is to collaboratively minimize a global objective that properly aggregates these local cost functions. To the best of our knowledge, we are among the first to study Byzantine-resilient optimization where no central coordinating agent exists, and we are...
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作者：Candido, Renato Markele Ferreira; Hardouin, Laurent; Lhommeau, Mehdi; Mendes, Rafael Santos
作者单位：Universidade Estadual de Campinas; Universite d'Angers
摘要：Max-plus linear (MPL) systems are often described by a transition function, which models the state evolution of the system, and a measurement function, which binds the measures with the system states. Methods for computing the inverse image of a point w.r.t. the measurement function are particularly interesting in applications where it is desirable to obtain information about the system states based on the output observations. The inverse image of a set w.r.t. a nondeterministic MPL system, ca...
