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作者：Li, Jie; Li, Shengbo Eben; Duan, Jingliang; Lyu, Yao; Zou, Wenjun; Guan, Yang; Yin, Yuming
作者单位：Tsinghua University; University of Science & Technology Beijing
摘要：Though policy evaluation error profoundly affects the direction of policy optimization and the convergence property, it is usually ignored in policy iteration methods. This work incorporates the practical inexact policy evaluation into a simultaneous policy update paradigm to reach the Nash equilibrium of the nonlinear zero-sum games. In the proposed algorithm, the restriction of precise policy evaluation is removed by bounded evaluation error characterized by Hamiltonian without sacrificing c...
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作者：Lu, Biao; Fang, Yongchun
作者单位：Nankai University
摘要：Efficient control of underactuated systems has always been a great challenge, since one has to stabilize both actuated and unactuated states with fewer control inputs. During the past decades, great efforts have been devoted to improving the transient performance and robustness of the system, which are very crucial in plenty of application scenarios. To motivate corresponding research, an online trajectory planning method is proposed for a class of underactuated mechanical systems in this arti...
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作者：Zhu, Shiyong; Cao, Jinde; Lin, Lin; Lam, James; Azuma, Shun-ichi
作者单位：City University of Hong Kong; Southeast University - China; Southeast University - China; Purple Mountain Laboratories; Yonsei University; University of Hong Kong; Kyoto University
摘要：This article studies structural controllers and distributed pinning controllers for the global stabilization of Boolean networks (BNs) by integrating the information on their network structures. The main contribution is that several computationally efficient procedures are presented to reduce the number of controlled nodes and to determine a minimal set of controlled nodes without using the brute-force searches. The primary objective is to identify a minimal set of nodes that need to be contro...
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作者：Zeng, Zhexuan; Yue, Zuogong; Mauroy, Alexandre; Goncalves, Jorge; Yuan, Ye
作者单位：Huazhong University of Science & Technology; University of Namur; University of Luxembourg
摘要：Low sampling frequency challenges the exact identification of continuous-time (CT) dynamical systems from sampled data, even when their models are identifiable. A necessary and sufficient condition is proposed, built from the Koopman operator, for the exact identification of CT systems from sampled data. This condition provides a Nyquist-Shannon-like critical frequency for the exact identification of the CT nonlinear dynamical system, which has Koopman invariant spaces. First, it establishes a...
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作者：Giaccagli, Mattia; Zoboli, Samuele; Astolfi, Daniele; Andrieu, Vincent; Casadei, Giacomo
作者单位：Universite de Lorraine; Centre National de la Recherche Scientifique (CNRS); Universite de Toulouse; Universite Toulouse III - Paul Sabatier; Centre National de la Recherche Scientifique (CNRS); Centre National de la Recherche Scientifique (CNRS); Universite Claude Bernard Lyon 1; Universite Claude Bernard Lyon 1; Ecole Centrale de Lyon; Institut National des Sciences Appliquees de Lyon - INSA Lyon
摘要：In this article, we consider the problem of exponential synchronization of a network of identical input-affine nonlinear time-varying systems connected through an undirected graph, in the presence of a leader. We tackle the problem with incremental stability tools. We propose sufficient metric-based conditions to design a distributed diffusive coupling feedback law in two frameworks. First, we consider a state feedback design, where synchronization is obtained for every initial condition. Then...
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作者：Li, Jiarui; Yan, Xing-Gang; Niu, Yugang
作者单位：Shanghai Maritime University; University of Kent; East China University of Science & Technology
摘要：This work investigates the problem of decentralized output-feedback sliding mode control (SMC) for a class of large-scale systems under the requirement of finite-time boundedness (FTB). The regular form of sliding mode based on coordinate transformation, instead of the equivalent control method, is utilized to analyze the global FTB over both the reaching and sliding phases. Moreover, time-varying bounds of states over the operating interval are obtained, which is essential for the design of d...
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作者：Wei, Henglai; Liu, Changxin; Shi, Yang
作者单位：University of Victoria
摘要：This article addresses the consensus problem of linear discrete-time multiagent systems (MASs) under the conditions of input constraints and bounded time-varying communication delays. We propose a novel consensus framework for such constrained MASs that incorporates an offline optimal consensus design for unconstrained systems to achieve optimal consensus convergence, along with an online robust distributed model predictive control (DMPC) to accommodate constraints. Our framework accomplishes ...
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作者：Huang, Yan; Xu, Jinming; Meng, Wenchao; Wai, Hoi-To; Chai, Li
作者单位：Zhejiang University; Chinese University of Hong Kong
摘要：We consider a distributed personalized optimization problem over a network of nodes whose cost functions depend on a decision variable consisting of two parts: global (shared) part and local (node-specific) part. This problem structure arises in several important scenarios, where the global part captures the common feature among nodes and the local part represents the personalized feature. To solve this problem, we develop a flexible algorithmic framework employing personalized distributed sto...
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作者：Konda, Rohit; Chandan, Rahul; Grimsman, David; Marden, Jason R.
作者单位：University of California System; University of California Santa Barbara; Brigham Young University
摘要：Designing fast, distributed algorithms for multiagent problems is vital for many novel application domains. Greedy algorithms have been shown in many multiagent contexts to be an efficient approach to arrive at good solutions quickly. In this work, we ask the following: Is there any way to improve the performance of greedy algorithms without sacrificing the linear run-time guarantees? For this, we take inspiration from incentive design in the game-theoretic literature. In this work, we conside...
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作者：Zaitsev, Vasilii; Dashkovskiy, Sergey
作者单位：Udmurt State University; University of Wurzburg
摘要：In this article, we study the problem of uniform local and global asymptotic stabilization of the origin for nonlinear discrete-time control systems with periodic coefficients via state feedback. It is assumed that the origin of the free dynamic system is Lyapunov stable. The approach is based on the Krasovsky-La Salle invariance principle for discrete-time periodic systems. The stabilizing control law is constructed by means of applying bounded feedback design technique previously developed f...
