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作者：Li, Zhongkui; Jiao, Junjie; Chen, Xiang
作者单位：Peking University; Technical University of Munich; University of Windsor
摘要：This paper considers the distributed robust suboptimal consensus control problem of linear multi-agent systems, with both H-2 and H-infinity performance requirements. A novel two-step complementary design approach is proposed. In the first step, a distributed control law is designed for the nominal multi-agent system to achieve consensus with a prescribed H-2 performance. In the second step, an extra control input, depending on some carefully chosen residual signals indicating the modeling mis...
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作者：Niu, Yichun; Sheng, Li; Gao, Ming; Zhou, Donghua
作者单位：China University of Petroleum; Shandong University of Science & Technology
摘要：This article is concerned with the problem of fault detection (FD) for stochastic linear time-varying systems. The unified framework of the residual generator is constructed by using all currently available inputs and outputs, which can describe the existing observer-based methods and the parity space method. Then, the chi(2) test is introduced to evaluate the multivariate residual. In this article, the fault detector is said to be optimal if the missed detection rate (MDR) is minimal under a ...
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作者：Park, Nam-Jin; Kim, Yeong-Ung; Ahn, Hyo-Sung; Moore, Kevin L.
作者单位：Gwangju Institute of Science & Technology (GIST); Colorado School of Mines
摘要：In this article, we first establish definitions of structural controllability and strong structural observability for a single state node, based on the conditions of strong structural controllability and observability outlined in existing works. Second, we provide a necessary and sufficient condition for strongly structurally controllable (SSC) and strongly structurally observable (SSO) state nodes in acyclic graphs. Third, we provide the relationship between the conditions for SSC and SSO sta...
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作者：Yang, Yujie; Zhang, Yuhang; Zou, Wenjun; Chen, Jianyu; Yin, Yuming; Eben Li, Shengbo
作者单位：Tsinghua University; Tsinghua University; Zhejiang University of Technology
摘要：Safety is a critical concern when applying reinforcement learning to real-world control problems. A widely used method for ensuring safety is to learn a control barrier function with heuristic feasibility labels that come from expert demonstrations or constraint functions. However, their forward invariant sets fall short of the maximum feasible region because of inaccurate labels. This article proposes an algorithm called feasible region iteration (FRI) that learns the maximum feasible region ...
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作者：Impicciatore, Anastasia; Lun, Yuriy Zacchia; Pepe, Pierdomenico; D'Innocenzo, Alessandro
作者单位：University of L'Aquila
摘要：The communication links connecting components of wireless control systems may be affected by packet losses due to time-varying fading and interference. We consider a wireless control network with double-sided packet losses: on the sensor-controller link (sensing link) and the controller-actuator link (actuation link). We model the sensing and actuation links as finite-state Markov channels (FSMCs). One time-step delay affects the actuation link mode observation, while the sensing link mode obs...
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作者：Ito, Kaito; Kashima, Kenji
作者单位：Institute of Science Tokyo; Tokyo Institute of Technology; Kyoto University
摘要：We consider an entropy-regularized version of optimal density control of deterministic discrete-time linear systems. Entropy regularization, or a maximum entropy (MaxEnt) method for optimal control, has attracted much attention especially in reinforcement learning due to its many advantages, such as a natural exploration strategy. Despite the merits, high-entropy control policies induced by the regularization introduce probabilistic uncertainty into systems, which severely limits the applicabi...
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作者：Oliva, Gabriele; Franceschelli, Mauro; Gasparri, Andrea; Scala, Antonio
作者单位：University Campus Bio-Medico - Rome Italy; University of Cagliari; Roma Tre University; Consiglio Nazionale delle Ricerche (CNR); Istituto dei Sistemi Complessi (ISC-CNR)
摘要：In this article, we develop a general open multiagent systems (OMAS) framework over undirected graphs where the agents' interaction is, in general, nonlinear, time-varying, and heterogeneous, in that the agents interact with different pairwise interaction rules for each link, possibly nonlinear, which may change over time. In particular, assuming the agents interact by exchanging flows, which modify their states, our framework guarantees that the sum of the states of agents participating in th...
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作者：Phogat, Karmvir Singh; Tsumura, Koji
作者单位：University of Tokyo
摘要：In automatic negotiation, an automated agent is trained to negotiate on behalf of a human negotiator. We consider that the domain of negotiations is known to both the agent and its opponents. In this setting, a greedy concession algorithm (GCA) is employed to find an optimal policy for the agent when the agent's belief about the opponent is known. However, the GCA is computationally expensive to certain class of policies. In this article, we propose a reverse GCA that is computationally less e...
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作者：Corless, Martin J.; Coduti, Leonardo
作者单位：Purdue University System; Purdue University
摘要：In this article, we consider a network of agents running a linear or nonlinear consensus algorithm with the following goal: in addition to requiring that the outputs of all agents converge to the same value, we also require that a specified linear function of the agent states remains constant during the evolution of the consensus algorithm. To achieve this goal requires the construction of a matrix of weighting parameters with specific properties. In this article, we present a noniterative cen...
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作者：Ferrante, Augusto; Hakimi-Moghaddam, Mojtaba
作者单位：University of Padua; Quchan University of Technology
摘要：In this article, we consider linear systems having real rational transfer matrices that may be improper. We investigate the properties of strictly positive real and weakly strictly positive real systems and their connections. Our first contribution is to establish a necessary and sufficient condition for a rational and possibly improper transfer matrix to be strictly positive real. Besides stability, this condition only involves the properties of the transfer matrix in the imaginary axis and a...
