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作者：Jiang, Xia; Zeng, Xianlin; Sun, Jian; Chen, Jie
作者单位：Beijing Institute of Technology; Beijing Institute of Technology; Tongji University; Beijing Institute of Technology
摘要：This article develops distributed synchronous and asynchronous algorithms for the large-scale semidefinite programming with diagonal constraints, which has wide applications in combinatorial optimization, image processing, and community detection. The information of the semidefinite programming is allocated to multiple interconnected agents such that each agent aims to find a solution by communicating to its neighbors. Based on the low-rank property of solutions and the Burer-Monteiro factoriz...
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作者：Iakovidou, Charikleia; Wei, Ermin
作者单位：Northwestern University
摘要：We present and analyze a stochastic distributed method (S-NEAR-DGD) that can tolerate inexact computation and inaccurate information exchange to alleviate the problems of costly gradient evaluations and bandwidth-limited communication in large-scale systems. Our method is based on a class of flexible, distributed first-order algorithms that allow for the tradeoff of computation and communication to best accommodate the application setting. We assume that the information exchanged between nodes...
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作者：Stechlinski, Peter
作者单位：University of Maine System; University of Maine Orono
摘要：Dynamic optimization theory is established for nonlinear complementarity systems, a class of highly nonlinear and nonsmooth dynamical systems, which find widespread use in engineering. In particular, optimal control problems involving complementarity systems are solved using a direct approach, allowing for gradient-based sequential methods (e.g., single or multiple shooting) to update a parametrically discretized control. This is accomplished via lexicographic directional differentiation, a re...
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作者：Aranovskiy, Stanislav; Ushirobira, Rosane; Korotina, Marina; Vedyakov, Alexey
作者单位：ITMO University; Inria; Universite de Lille; Centre National de la Recherche Scientifique (CNRS)
摘要：In this article, we consider the excitation preservation problem of Kreisselmeier's regressor extension scheme. We analyze this problem within the context of the dynamic regressor extension and mixing procedure. The well-known qualitative result is that such a scheme preserves excitation. We perform a quantitative analysis and derive lower bounds on the resulting regressor signal considering both persistent and interval excitation cases. We also show that the resulting signal is excited if and...
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作者：Deng, Chao; Wen, Changyun; Wang, Wei; Li, Xinyao; Yue, Dong
作者单位：Nanjing University of Posts & Telecommunications; Nanyang Technological University; Beihang University; Beihang University
摘要：In this article, we investigate the consensus problem for high-order nonlinear multiagent systems (MASs) with an uncertain leader under event-triggered communication. Compared with the existing consensus results for nonlinear MASs under event-triggered communication, the class of systems considered is more general, while achieving better performance in term of asymptotic tracking. To estimate the unknown parameters of the uncertain leader, distributed intermediate parameter estimators based on...
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作者：Kim, Junsoo; Shim, Hyungbo; Han, Kyoohyung
作者单位：Royal Institute of Technology; Seoul National University (SNU); Samsung
摘要：In this article, we present a dynamic feedback controller that computes the next state and the control signal over encrypted data using homomorphic properties of cryptosystems, whose performance is equivalent to the linear dynamic controllers over real-valued data. Assuming that the input as well as the output of the plant is encrypted and transmitted back to the controller, it is shown that the state matrix of any linear time-invariant controller can be always converted to a matrix of integer...
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作者：Lanzon, Alexander; Bhowmick, Parijat
作者单位：University of Manchester
摘要：this article, we define the notion of sta-ble input-output negative imaginary (IONI) systems. This new class captures and unifies all the existing stable sub-classes of negative imaginary (NI) systems and is capable of distinguishing between the strict subclasses (e.g., strongly strictly negative imaginary, output strictly negKative imaginary (OSNI), input strictly negative imaginary, etc.) in the literature. In addition to a frequency-domain definition, the proposed IONI class has been charac...
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作者：Markovsky, Ivan
作者单位：Universitat Politecnica de Catalunya; Centre Internacional de Metodes Numerics en Enginyeria (CIMNE); ICREA
摘要：Nonparameteric representations of linear time-invariant systems that use Hankel matrices constructed from data are the basis for data-driven simulation and control. This article extends the approach to data-driven simulation of a class of nonlinear systems, called generalized bilinear. The generalized bilinear class includes Hammerstein, finite-lag Volterra, and bilinear systems. The key step of the generalization is an embedding result that is of independent interest. The behavior of a nonlin...
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作者：Postoyan, Romain; Sanfelice, Ricardo G.; Heemels, W. P. M. H.
作者单位：Centre National de la Recherche Scientifique (CNRS); Universite de Lorraine; University of California System; University of California Santa Cruz; Eindhoven University of Technology
摘要：Motivated by scenarioswhere the communication or the computation resources are limited, event-triggered control consists of transmitting data between the plant and the controller according to the actual system needs and not the elapsed time since the last transmission instant as in traditional sampled-data control, so that the desired control objective is achieved. A range of techniques are nowadays available to design event-triggered controllers. However, we generally have only very little in...
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作者：Barrau, Axel; Bonnabel, Silvere
作者单位：Safran S.A.; Universite PSL; MINES ParisTech
摘要：While many works exploiting an existing Lie group structure have been proposed for state estimation, in particular the invariant extended Kalman filter (IEKF), few papers address the construction of a group structure that allows casting a given system into the framework of invariant filtering. In this article, we introduce a large class of systems encompassing most problems involving a navigating vehicle encountered in practice. For those systems we introduce a novel methodology that systemati...
