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作者：Huang, Jianhui; Qiu, Zhenghong; Wang, Shujun; Wu, Zhen
作者单位：Hong Kong Polytechnic University; Shandong University; Shandong University
摘要：This article revisits well-studied dynamic decisions in weakly coupled large-population (LP) systems. Specifically, three types of LP decision problems: mean-field game (MG), mean-field team (MT), and mean-field-type control (MC), are completely analyzed in a general stochastic linear-quadratic setting with controlled-diffusion in state dynamics and indefinite weight in cost functional. More importantly, interrelations among MG, MT, and MC are systematically discussed; some relevant and intere...
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作者：McDonald, Curtis; Yuksel, Serdar
作者单位：Yale University; Queens University - Canada
摘要：Despite being a foundational concept of modern systems theory, there have been few studies on observability of nonlinear stochastic systems under partial observations. In this article, we introduce a definition of observability for stochastic nonlinear dynamical systems, which involves an explicit functional characterization. To justify its operational use, we establish that this definition implies filter stability under mild continuity conditions: an incorrectly initialized nonlinear filter i...
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作者：Saboori, Anooshiravan; Hadjicostis, Christoforos N.
作者单位：University of Cyprus
摘要：This note identifies a flaw in the proof of Theorem 16 in (Saboori and Hadjicostis, 2014). It also discusses how the statement of Theorem 16 can be adjusted and provides the corresponding proof.
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作者：Yan, Yitao; Bao, Jie; Huang, Biao
作者单位：University of New South Wales Sydney; University of Alberta
摘要：This article presents a distributed data-driven predictive control approach using the behavioral framework. It aims to design a network of controllers for an interconnected system with linear time-invariant subsystems such that a given global (network-wide) cost function is minimized while desired control performance (e.g., network stability and disturbance rejection) is achieved using dissipativity in the quadratic difference form. By viewing dissipativity as a behavior and integrating it int...
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作者：Li, Xuefang; Hou, Zhongsheng
作者单位：Sun Yat Sen University; Qingdao University
摘要：In this work, the adaptive iterative learning control (AILC) for a generic class of nonsquare nonlinear systems is investigated in presence of unknown control gain matrices and nonparametric iteration-varying uncertainties. Differently from the existing approaches, the present work develops a unified, structurally simple and user-friendly AILC method, which is effective to handle nonlinear systems with parametric or nonparametric uncertainties, square or nonsquare input matrices, known or unkn...
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作者：Soleymani, Touraj; Baras, John S.; Johansson, Karl H.
作者单位：Imperial College London; Royal Institute of Technology; University System of Maryland; University of Maryland College Park
摘要：State estimation over a communication channel, in which sensory information of a stochastic source is transmitted in real-time by an encoder to a decoder that estimates the state of the source, is one of the basic problems in networked control systems. In this article, we investigate the performance of state estimation under two primary network imperfections: packet loss and time delay. To that end, we make a causal frequency-distortion tradeoff that is defined between the packet rate and the ...
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作者：Huff, Daniel Denardi; Fiacchini, Mirko; Gomes da Silva Jr, Joao Manoel
作者单位：Communaute Universite Grenoble Alpes; Institut National Polytechnique de Grenoble; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS); Universidade Federal do Rio Grande do Sul
摘要：This work deals with the mean square exponential stabilization of sampled-data linear systems subject to sector-bounded actuator nonlinearities and to aperiodic sampling intervals, which are assumed to be Erlang-distributed random variables. The possibility of packet dropouts is also taken into account and modeled by a Bernoulli process. Linear matrix inequality (LMI) conditions are proposed to design a stabilizing state-feedback controller for the system. Moreover, it is shown that the method...
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作者：Cui, Leilei; Pang, Bo; Jiang, Zhong-Ping
作者单位：New York University; New York University Tandon School of Engineering
摘要：This article studies the adaptive optimal control problem for a class of linear time-delay systems described by delay differential equations. A crucial strategy is to take advantage of recent developments in reinforcement learning and adaptive dynamic programming and develop novel methods to learn adaptive optimal controllers from finite samples of input and state data. In this article, the data-driven policy iteration (PI) is proposed to solve the infinite-dimensional algebraic Riccati equati...
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作者：Duan, Xiaoming; Xu, Zhe; Yan, Rui; Topcu, Ufuk
作者单位：Shanghai Jiao Tong University; Arizona State University; Arizona State University-Tempe; University of Oxford; University of Texas System; University of Texas Austin
摘要：In this article, we study privacy-utility tradeoffs where users share privacy-correlated useful information with a service provider to obtain some utility. The service provider is adversarial in the sense that it can infer the users' private information based on the shared useful information. To minimize the privacy leakage while maintaining a desired level of utility, the users carefully perturb the useful information via a probabilistic privacy mapping before sharing it. We focus on the sett...
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作者：Cui, Yukang; Wu, Zongze; Gong, Xin; Basin, Michael V.; Huang, Tingwen
作者单位：Shenzhen University; Southeast University - China; Ningbo University of Technology; Universidad Autonoma de Nuevo Leon; Shenzhen University of Advanced Technology
摘要：This note studies the stability problem of nonlinear positive differential-difference equations with unbounded time-varying delays. Under assumptions on the nonlinear vector fields, such as being homogeneous, cooperative, and order-preserving, conditions are derived for positivity and asymptotic stability of nonlinear differential-difference equations, which include the corresponding linear system as a special case. This work features three main contributions: first, a necessary and sufficient...
