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2022 IEEE International Conference on Big Data, Big Data 2022

作者： Fan, Rui Zhang, Yikang Guo, Sicen Li, Jiahang Feng, Yi Su, Shuai Zhang, Yanting Wang, Wenshuo Jiang, Yu Junaid Bocus, Mohammud Zhu, Xingyi Chen, Qijun Department of Control Science & Engineering Frontiers Science Center for Intelligent Autonomous Systems State Key Laboratory of Intelligent Autonomous Systems Shanghai201804 China Donghua University Department of Computer Science & Technology Shanghai201620 China McGill University Department of Civil Engineering MontrealH3A 0C3 Canada Cto Office at ClearMotion BillericaMA01821 United States University of Bristol Department of Electrical & Electronic Engineering BristolBS8 1UB United Kingdom Tongji University Key Laboratory of Road and Traffic Engineering Ministry of Education Shanghai200092 China

ISBN: (纸本)9781665480451

Urban digital twin (UDT) technologies offer new opportunities for intelligent road inspection (IRI). This paper first reviews the state-of-the-art algorithms used in the two key components of UDT-based IRI systems: (1) multi-temporal, multi-dimension, multi-score, and heterogeneous road data acquisition, and (2) road distress detection. This paper then summarizes the UDTIRI competition, organized in conjunction with IEEE Bigdata 2022. More details on our competition are available at ***/view/udtiri-workshop/bigdata-2022. © 2022 IEEE.

关键词： Data acquisition

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Optimal Information Security Against Limited-View Adversaries: The Benefits of Causality and Feedback

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IEEE Transactions on Communications 2025年

作者： Bakshi, Mayank Kadhe, Swanand Zhang, Qiaosheng Jaggi, Sidharth Sprintson, Alex Arizona State University School of Electrical Computer and Energy Engineering TempeAZ85281 United States IBM's Almaden Research Center San JoseCA95120 United States Shanghai Artificial Intelligence Laboratory Shanghai200232 China Shanghai Innovation Institute China University of Bristol School of Mathematics BristolBS8 1QU United Kingdom Texas A and M University Department of ECE College StationTX77843 United States

The Singleton bound provides a fundamental limit on the maximum possible size of an error-correcting code of a given length and distance. However, recent work by Zhang et. al. [IEEE Trans. Comm., Dec. 2023] showed that in the context of the wiretap multipath network when the adversary has limited knowledge about the codewords and a vanishing probability of decoding error is permitted, a rate higher than the Singleton bound is achievable. Their results, however, are confined to an ideal setting where the adversary is allowed to behave non-causally. Motivated by real-world scenarios, this work considers communication over a wiretap multipath network in the presence of a causal adversary (i.e., the adversary which is only allowed to use the observations up to the current time slot to decide the current jamming strategy) and in the presence of passive feedback from the receiver to the transmitter. We characterize both the capacity and secrecy capacity of the wiretap multipath network, either with or without passive feedback. We observe that in comparison to the non-causal and non-feedback setting, the capacity and secrecy capacity can be strictly higher for a wide variety of parameters, demonstrating the benefits of causality and feedback. © 1972-2012 IEEE.

关键词： Jamming

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Nonsingular Adaptive Barrier Function-Based Finite Time Control for Uncertain Nonlinear Systems

SSRN

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SSRN 2023年

作者： Mobayen, Saleh Zhang, Jianhua Zhu, Quanmin Fekih, Afef Future Technology Research Center Taiwan Graduate School of Intelligent Data Science National Yunlin University of Science and Technology Douliu Taiwan School of Information and Control Engineering Qingdao University of Technology Qingdao266520 China Department of Engineering Design and Mathematics University of the West of England Frenchy Campus Coldharbour Lane BristolBS16 1QY United Kingdom Department of Electrical and Computer Engineering University of Louisiana at Lafayette LafayetteLA70504 United States

This study presents a novel approach for using sliding mode control (SMC) for uncertain nonlinear systems with external unknown disturbances. A nonsingular adaptive barrier function-based finite time control is developed to deal with such systems. In technical implementation, first a novel sliding surface is designed based on the Hurwitz condition, then, using the finite-time stability method, a novel nonsingular terminal sliding manifold is established and the barrier function is obtained, which can guarantee the sliding surface convergence to the origin in finite time. For functional and numerical validation, two examples of uncertain nonlinear systems are selected to illustrate the effectiveness of the proposed method in comparison with the other representative approaches. © 2023, The Authors. All rights reserved.

关键词： Sliding mode control

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Chip-scale nonlinear photonics for green light generation using on-chip pump lasers

Chip-scale nonlinear photonics for green light generation us...

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Integrated Photonics Research, Silicon and Nanophotonics, IPR 2021 - Part of OSA Advanced Photonics Congress 2021

作者： Li, Chih-Hao Ramachandra, Sujit H. Faruque, Imad I. Dwivedi, Sarvagya Arafin, Shamsul Department of Electrical and Computer Engineering The Ohio State University ColumbusOH43210 United States Heriot-Watt University EdinburghEH14 4AS United Kingdom QET Labs University of Bristol BristolBS8 1TL United Kingdom IMEC Kapeldreef 75 Leuven3001 Belgium

Nonlinear photonic integrated circuits at green wavelengths with on-chip pump lasers and hybrid waveguides are designed. The calculated nonlinear mode overlap factor and maximum laser-to-waveguide coupling efficiency ... 详细信息

ISBN: (纸本)9781557528209

关键词： Pumping (laser)

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Applying classical control techniques to quantum systems: Entanglement versus stability margin and other limitations

arXiv

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arXiv 2022年

作者： Weidner, Carrie A. Schirmer, S.G. Langbein, F.C. Jonckheere, E. The Quantum Engineering Technology Laboratories H. H. Wills Physics Laboratory Department of Electrical and Electronic Engineering University of Bristol BristolBS8 1FD United Kingdom The Faculty of Science & Engineering Swansea University SwanseaSA2 8PP United Kingdom The School of Computer Science and Informatics Cardiff University CardiffCF24 4AG United Kingdom The Department of Electrical and Computer Engineering University of Southern California Los AngelesCA90089 United States

Development of robust quantum control has been challenging and there are numerous obstacles to applying classical robust control to quantum system including bilinearity, marginal stability, state preparation errors, nonlinear figures of merit. The requirement of marginal stability, while not satisfied for closed quantum systems, can be satisfied for open quantum systems where Lindbladian behavior leads to non-unitary evolution, and allows for nonzero classical stability margins, but it remains difficult to extract physical insight when classical robust control tools are applied to these systems. We consider a straightforward example of the entanglement between two qubits dissipatively coupled to a lossy cavity and analyze it using the classical stability margin and structured perturbations. We attempt, where possible, to extract physical insight from these analyses. Our aim is to highlight where classical robust control can assist in the analysis of quantum systems and identify areas where more work needs to be done to develop specific methods for quantum robust control. Copyright © 2022, The Authors. All rights reserved.

关键词： Robust control

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Statistically Characterising Robustness and Fidelity of Quantum Controls and Quantum Control Algorithms

arXiv

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arXiv 2022年

作者： Khalid, Irtaza Weidner, Carrie A. Jonckheere, Edmond A. Shermer, Sophie G. Langbein, Frank C. School of Computer Science and Informatics Cardiff University CardiffCF24 4AG United Kingdom Quantum Engineering Technology Laboratories H. H. Wills Physics Laboratory Departmentof Electrical and Electronic Engineering University of Bristol BristolBS8 1FD United Kingdom Department of Electrical and Computer Engineering University of Southern California Los AngelesCA90089 United States Department of Physics Swansea University SwanseaSA2 8PP United Kingdom

Robustness of quantum operations or controls is important to build reliable quantum devices. The robustness-infidelity measure (RIMp) is introduced to statistically quantify in a single measure the robustness and fidelity of a controller as the p-th order Wasserstein distance between the fidelity distribution of the controller under any uncertainty and an ideal fidelity distribution. The RIMp is the p-th root of the p-th raw moment of the infidelity distribution. Using a metrization argument, we justify why RIM1 (the average infidelity) is a good practical robustness measure. Based on the RIMp, an algorithmic robustness-infidelity measure (ARIM) is developed to quantify the expected robustness and fidelity of controllers found by a control algorithm. The utility of the RIM and ARIM is demonstrated on energy landscape controllers of spin-12 networks subject to Hamiltonian uncertainty. The robustness and fidelity of individual controllers as well as the expected robustness and fidelity of controllers found by different popular quantum control algorithms are characterized. For algorithm comparisons, stochastic and non-stochastic optimization objectives are considered. Although high fidelity and robustness are often conflicting objectives, some high-fidelity, robust controllers can usually be found, irrespective of the choice of the quantum control algorithm. However, for noisy or stochastic optimization objectives, adaptive sequential decision-making approaches, such as reinforcement learning, have a cost advantage compared to standard control algorithms and, in contrast, the high infidelities obtained are more consistent with high RIM values for low noise levels. Copyright © 2022, The Authors. All rights reserved.

关键词： Controllers

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Time-Domain Sensitivity of the Tracking Error

arXiv

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arXiv 2022年

作者： O'Neil, S. Schirmer, S.G. Langbein, F.C. Weidner, C.A. Jonckheere, E. the Department of Electrical and Computer Engineering University of Southern California Los AngelesCA90089 United States the Faculty of Science & Engineering Swansea University SwanseaSA2 8PP United Kingdom the School of Computer Science and Informatics Cardiff University CardiffCF24 4AG United Kingdom the Quantum Engineering Technology Laboratories University of Bristol BristolBS8 1FD United Kingdom

A strictly time-domain formulation of the log-sensitivity of the error signal to structured plant uncertainty is presented and analyzed through simple but representative classical and quantum systems. Results demonstrate that across a wide range of physical systems, maximization of performance (minimization of the error signal) asymptotically or at a specific time comes at the cost of increased log-sensitivity, implying a time-domain constraint analogous to the frequency-domain identity S(s) + T(s) = I. While of limited value in classical problems based on asymptotic stabilization or tracking, such a time-domain formulation is valuable in assessing the reduced robustness cost concomitant with high-fidelity quantum control schemes predicated on time-based performance measures. Copyright © 2022, The Authors. All rights reserved.

关键词： Frequency domain analysis

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Prescribed Performance Resilient Motion Coordination with Actor–Critic Reinforcement Learning Design for UAV-USV Systems

IEEE Transactions on Artificial Intelligence

引用

IEEE Transactions on Artificial Intelligence 2025年

作者： Ghommam, Jawhar Saad, Maarouf Rahman, Mohammad H. Zhu, Quanmin Sultan Qaboos University Department of Electrical and Computer Engineering Oman Department of Electrical Engineering Montreal Canada University of Wisconsin-Milwaukee Mechanical Engineering Department WI United States University of the West of England Department of Engineering Design and Mathematics Frenchy Campus Coldharbour Lane BristolBS16 1QY United Kingdom

In this paper, we develop a virtual vehicle scheme to solve the coordination control problem under denial-of-service (DoS) attacks for heterogeneous vehicles. This system includes an unmanned surface vessel (USV) in distress, sharing kinematic data, and a helicopter receiving data from the latter through wireless communication. Specifically, we carefully develop an estimator to model the unmeasurable states of the USV in the presence of DoS attacks. The virtual vehicle concept is then utilized to generate a velocity reference output for the helicopter to follow. To achieve preset tracking performances, the cascade structure of the helicopter is exploited, where the backstepping control strategy is used via a barrier Lyapunov function. To handle input constraints, auxiliary systems are built to bridge the association between input saturation errors and performance constraints. Furthermore, to mitigate the saturation effect of bounded inputs and model uncertainties in the attitude dynamics, a fixed-time reinforcement learning (FT-RL) control algorithm is designed according to actor-critic strategy. Stability analysis is thoroughly studied with the help of Lyapunov stability where sufficient conditions for the whole closed-loop system have been obtained. Numerical simulations have been shown to validate the proposed coordination strategy. © 2020 IEEE.

关键词： Reinforcement learning

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Satellite-Based Quantum Key Distribution in the Presence of Bypass Channels

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PRX Quantum 2023年第4期4卷 040320-040320页

作者： Masoud Ghalaii Sima Bahrani Carlo Liorni Federico Grasselli Hermann Kampermann Lewis Wooltorton Rupesh Kumar Stefano Pirandola Timothy P. Spiller Alexander Ling Bruno Huttner Mohsen Razavi School of Electronic and Electrical Engineering University of Leeds Leeds LS2 9JT United Kingdom Department of Electrical and Electronic Engineering University of Bristol Bristol BS8 1UB United Kingdom Institute für Theoretische Physik III Heinrich Heine Universität D-40225 Düsseldorf Germany Quantum Engineering Centre for Doctoral Training H. H. Wills Physics Laboratory University of Bristol Bristol BS8 1FD United Kingdom Department of Mathematics University of York Heslington York YO10 5DD United Kingdom School of Physics Engineering and Technology University of York York YO10 5DD United Kingdom York Centre for Quantum Technologies University of York York United Kingdom Department of Computer Science University of York York YO10 5GH United Kingdom Centre for Quantum Technologies National University of Singapore 117543 Singapore Department of Physics Faculty of Science National University of Singapore 117551 Singapore ID Quantique Geneva Switzerland

The security of prepare-and-measure satellite-based quantum key distribution (QKD), under restricted eavesdropping scenarios, is addressed. We particularly consider cases where the eavesdropper, Eve, has limited access to the transmitted signal by Alice and/or Bob’s receiver station. This restriction is modeled by lossy channels between relevant parties, where the transmissivity of such channels can, in principle, be bounded by monitoring techniques. An artifact of such lossy channels is the possibility of having bypass channels, those that are not accessible to Eve but that may not necessarily be characterized by the users either. This creates interesting unexplored scenarios for analyzing QKD security. In this paper, we obtain generic bounds on the key rate in the presence of bypass channels and apply them to continuous-variable QKD protocols with Gaussian encoding with direct and reverse reconciliation. We find regimes of operation in which the above restrictions on Eve can considerably improve system performance. We also develop customized bounds for several protocols in the BB84 family and show that, in certain regimes, even the simple protocol of BB84 with weak coherent pulses is able to offer positive key rates at high channel losses, which would otherwise be impossible under an unrestricted Eve. In this case, the limitation on Eve would allow Alice to send signals with larger intensities than the optimal value under an ideal Eve, which effectively reduces the effective channel loss. In all these cases, the part of the transmitted signal that does not reach Eve can play a nontrivial role in specifying the achievable key rate. Our work opens up new security frameworks for spaceborne quantum communications systems.

关键词： Quantum communication, protocols & technology

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PALANTIR: Zero-trust architecture for Managed Security Service Provider 29

PALANTIR: Zero-trust architecture for Managed Security Servi...

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29th computer and Electronics Security Application Rendezvous, C and ESAR 2022

作者： Compasti, Maxime Sisinni, Silvia Gurung, Supreshna Fernández, Carolina Jacquin, Ludovic Mlakar, Izidor Šafran, Valentino Lioy, Antonio Pedone, Ignazio I2CAT Foundation C\ Gran Capit 2-4 Edifici Nexus I Catalonia Barcelona Spain Politecnico di Torino Corso Duca degli Abruzzi 24 Turin10129 Italy Hewlett Packard Enterprise 1 Enterprise Park Long Down Avenue Stoke Gifford BristolBS34 8QZ United Kingdom University of Maribor Faculty of Electrical Engineering and Computer Science Koro ka cesta 46 Maribor2000 Slovenia Sfera IT d.o.o. Beloruska ulica 7 Maribor2000 Slovenia

The H2020 PALANTIR project aims at delivering a Security-as-a-Service solution to SMEs and microenterprises via the exploitation of containerised Network Functions. However, these functions are conceived by third-party developers and can also be deployed in untrustworthy virtualisation layers, depending on the subscribed delivery model. Therefore, they cannot be trusted and require a stringent monitoring to ensure their harmlessness, as well as adequate measures to remediate any nefarious activities. This paper justifies, details and evaluates a Zero-Trust architecture supporting PALANTIR's solution. Specifically, PALANTIR periodically attests the service and infrastructure's components for signs of compromise by implementing the Trusted Computing paradigm. Verification addresses the firmware, OS and software using UEFI measured boot and Linux Integrity Measurement Architecture, extended to support containerised application attestation. Mitigation actions are supervised by the Recovery Service and the Security Orchestrator based on OSM to, respectively, determine the adequate remediation actions from a recovery policy and enforce them down to the lower layers of the infrastructure through local authenticated enablers. We detail an implementation prototype serving a baseline for quantitative evaluation of our work. ©? 2022 Copyright for this paper by its authors.

关键词： Application programs

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