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作者：Cao, Xuanyu; Zhang, Junshan; Poor, H. Vincent
作者单位：University of Illinois System; University of Illinois Urbana-Champaign; Arizona State University; Arizona State University-Tempe; Princeton University
摘要：In this article, we study constrained online convex optimization (OCO) in the presence of feedback delays, where a decision maker chooses sequential actions without knowing the loss functions and constraint functions a priori. The loss/constraint functions vary with time and their feedback information is revealed to the decision maker with delays, which arise in many applications. We first consider the scenario of delayed function feedback, in which the complete information of the loss/constra...
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作者：Li, Nan; Kolmanovsky, Ilya; Girard, Anouck
作者单位：University of Michigan System; University of Michigan
摘要：We propose a safe approximation to joint chance-constrained programming, where the constraint functions are additively dependent on a normally-distributed random vector. The approximation is analytical, meaning that it requires neither numerical integrations nor sampling-based probability approximations. Under mild assumptions, the approximation is a standard nonlinear program. We compare this new safe approximation to another analytical safe approximation for joint chance-constrained programm...
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作者：Seow, Kiam Tian
作者单位：Korea Advanced Institute of Science & Technology (KAIST)
摘要：This paper studies the linear-time temporal logic (LTL) control of a class of fair discrete-event systems (DESs). It is motivated by the curious extent in which the use of LTL can be strengthened and differentiated in control theory development. Over a fair DES model, a marker-progressive supervisory control problem is formulated in LTL. The problem formulation admits a more flexible specification of multiple markers to distinguish different DES tasks, and seeks to find a supervisor-a passive ...
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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. ...
