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作者：Zheng, Yang; Furieri, Luca; Papachristodoulou, Antonis; Li, Na; Kamgarpour, Maryam
作者单位：Harvard University; Harvard University; Swiss Federal Institutes of Technology Domain; ETH Zurich; University of Oxford
摘要：A convex parameterization of internally stabilizing controllers is fundamental for many controller synthesis procedures. The celebrated Youla parameterization relies on a doubly coprime factorization of the system, while the recent system-level and input-output parametrizations require no doubly coprime factorization, but a set of equality constraints for achievable closed-loop responses. In this article, we present explicit affine mappings among Youla, system-level, and input-output parameter...
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作者：Ramasubramanian, Bhaskar; Niu, Luyao; Clark, Andrew; Bushnell, Linda; Poovendran, Radha
作者单位：University of Washington; University of Washington Seattle; Worcester Polytechnic Institute
摘要：This article studies the synthesis of control policies for an agent that has to satisfy a temporal logic specification in a partially observable environment, in the presence of an adversary. The interaction of the agent (defender) with the adversary is modeled as a partially observable stochastic game. The goal is to generate a defender policy to maximize satisfaction of a given temporal logic specification under any adversary policy. The search for policies is limited to the space of finite-s...
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作者：Wang, Jian
作者单位：Bohai University
摘要：Different from uniform quantizer and logarithmic quantizer, this article proposes a novel quantizer for the design problems of linear systems with quantized feedback. This quantizer is based on spherical polar coordinates and has a desired relation between the quantized vector and the corresponding quantization error. Utilizing the proposed quantizer with infinite data rate, the quadratic stabilization problems of linear systems via state feedback under quantization can be converted, respectiv...
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作者：Ahmadi, Mohamadreza; Jansen, Nils; Wu, Bo; Topcu, Ufuk
作者单位：California Institute of Technology; Radboud University Nijmegen; University of Texas System; University of Texas Austin
摘要：Partially observable Markov decision processes (POMDPs) provide a modeling framework for a variety of sequential decision making under uncertainty scenarios in artificial intelligence (AI). Since the states are not directly observable in a POMDP, decision making has to be performed based on the output of a Bayesian filter (continuous beliefs); hence, making POMDPs intractable to solve and analyze. To overcome the complexity challenge of POMDPs, we apply techniques from the control theory. Our ...
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作者：Jin, Jiangliang; Hao, Liangliang; Xu, Yunjian; Wu, Junjie; Jia, Qing-Shan
作者单位：Chinese University of Hong Kong; Chinese University of Hong Kong; Tsinghua University
摘要：We study the joint scheduling of deferrable demands (e.g., the charging of electric vehicles) and storage systems in the presence of random supply, demand arrivals, processing costs, and subject to processing rate limit constraint. We formulate the scheduling problem as a dynamic program so as to minimize the expected total cost, the sum of processing costs, and the noncompletion penalty (incurred when a task is not fully processed by its deadline). Under mild assumptions, we characterize an o...
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作者：Huang, Ran; Ding, Zhengtao
作者单位：Beijing University of Chemical Technology; University of Manchester
摘要：This article studies delay compensation in consensus control under undirected graphs via output feedback. The dynamics of each node involved in the network is subject to an unknown bounded actuator delay. A transport partial differential equation is employed to model the dynamics of the delay state, and a filter with adaptive control gains is proposed using the available relative output information of neighboring nodes. Based on the state of the filter, the estimation delay state, and the dela...
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作者：Yong, Kenan; Chen, Mou; Shi, Yang; Wu, Qingxian
作者单位：Nanjing University of Aeronautics & Astronautics; University of Victoria
摘要：In this article, an anti-disturbance control design is presented for nonlinear systems based on a hybrid disturbance estimation scheme. This scheme features the capability of making full use of the incomplete knowledge on disturbance dynamics. By embedding the known information, the disturbance interval observer is developed to generate boundaries to cover individually each element of external disturbances. Through synthesizing a tangent barrier Lyapunov function-based estimation switching mec...
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作者：Li, Wuquan; Krstic, Miroslav
作者单位：Ludong University; University of California System; University of California San Diego
摘要：For stochastic strict-feedback nonlinear systems with unknown parameters in the drift terms or the diffusion terms, we develop new least-squares identification schemes without regressor filtering. A key new ingredient in the proposed estimator design is a weighted term with design parameters, which is introduced to deal with the nonlinear terms and stochastic noise. With such an estimator, new adaptive controllers are designed to guarantee that the equilibrium at the origin of the closed-loop ...
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作者：Bartosiewicz, Zbigniew; Kaldmae, Arvo; Kawano, Yu; Kotta, Ulle; Pawluszewicz, Ewa; Simha, Ashutosh; Wyrwas, Malgorzata
作者单位：Bialystok University of Technology; Tallinn University of Technology; Hiroshima University; Bialystok University of Technology
摘要：This article addresses the problem of checking the accessibility property for nonlinear single-input-single-output retarded time-delay systems with constant commensurable delays, described by higher order input-output functional differential equations. Necessary and sufficient conditions are found to check the accessibility property, and sufficient conditions are found to decompose the system equations into accessible and non-accessible subsystems. The conditions are presented in terms of auto...
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作者：Cisneros-Velarde, Pedro; Chan, Kevin S.; Bullo, Francesco
作者单位：University of California System; University of California Santa Barbara; United States Department of Defense; US Army Research, Development & Engineering Command (RDECOM); US Army Research Laboratory (ARL)
摘要：Much recent research on social networks has focused on the modeling and analysis of how opinions evolve as a function of interpersonal relationships. It is also of great interest to model and understand the implications of friendly and antagonistic relationships. In this article, we propose a new, simple and intuitive model that incorporates the socio-psychological phenomenon of the boomerang effect in opinion dynamics. We establish that, under certain conditions on the structure of the signed...
