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arXiv 2019年

作者： Sun, Ke Esnaola, Iñaki Tulino, Antonia M. Poor, H. Vincent Dept. of Automatic Control and Systems Engineering University of Sheffield SheffieldS1 3JD United Kingdom Nokia Bell Labs HolmdelNJ07733 United States Dept. of Electrical Engineering Princeton University PrincetonNJ08544 United States University degli Studi di Napoli Federico II Naples80138 Italy

The learning data requirements are analyzed for the construction of stealth attacks in state estimation. In particular, the training data set is used to compute a sample covariance matrix that results in a random matrix with a Wishart distribution. The ergodic attack performance is defined as the average attack performance obtained by taking the expectation with respect to the distribution of the training data set. The impact of the training data size on the ergodic attack performance is characterized by proposing an upper bound for the performance. Simulations on the IEEE 30-Bus test system show that the proposed bound is tight in practical settings. Copyright © 2019, The Authors. All rights reserved.

关键词： Information theory

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Dynamic estimation of visco-elastic mechanical characteristics of biological samples under micro manipulation 15

Dynamic estimation of visco-elastic mechanical characteristi...

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15th International Conference on Informatics in control, Automation and Robotics, ICINCO 2018

作者： Giamberardino, Paolo Di Aceto, Maria Laura Giannini, Oliviero Verotti, Matteo Dept. Computer Control and Management Engineering Antonio Ruberti Sapienza University of Rome Italy University Niccol Cusano Via Don Carlo Gnocchi 3 Rome Italy

ISBN: (纸本)9789897583216

This paper focuses on the possibility of using a recently fabricated micro gripper for the on line estimation of the mechanical characteristics (damping and elasticity) of a sample pinched by the jaws, with particular reference to biological tissues. A classical on line dynamical parameter estimator is computed for the given system with different estimation computations, and its effectiveness has been verified by numerical simulations. Results confirm the feasibility of a micro-robotic clinical device for surgery use equipped with a tissue recognition ability. Copyright © 2018 by SCITEPRESS – Science and Technology Publications, Lda. All rights reserved

关键词： Tissue

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A novel frequency domain maximum likelihood approach for estimating transport coefficients in cylindrical geometry for nuclear fusion devices

A novel frequency domain maximum likelihood approach for est...

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IEEE Annual Conference on Decision and control

作者： Matthijs van Berkel Gerardus W. Oosterwegel Martijn Anthonissen Hans J. Zwart Gerd Vandersteen DIFFER-Dutch Institute for Fundamental Energy Research Energy Systems and Control group Eindhoven The Netherlands Dept. of Mathematics and Computer Science Eindhoven University of Technology Eindhoven The Netherlands Dept. of Mechanical Engineering Eindhoven University of Technology Eindhoven The Netherlands Dept. of Fundamental Electricity and Instrumentation Vrije Universiteit Brussel (VUB) Brussels Belgium

ISBN: (数字)9781728113982

ISBN: (纸本)9781728113999

This paper introduces a novel maximum likelihood approach to determine the local thermal transport coefficients belonging to diffusion and convection from excitation (perturbative) transport experiments. It extends previous work developed for linear (slab) geometry to cylindrical (toroidal) geometry for fusion reactors. The previous linear geometry approach is based on analytic solutions of the partial differential equation. However, for cylindrical geometries with convection the analytic solutions are confluent hypergeometric functions (CHFs) with complex valued arguments. Most numerical libraries do not support CHFs evaluation with complex valued arguments. Hence, this paper proposes the use of an ultra-fast transfer function evaluation based on sparse numerical solutions for the discretized partial differential equation. This solution is implemented in MATLAB and incorporated in the frequency domain Maximum Likelihood Estimation framework. Consequently, transport coefficients can be estimated consistently when measurements are perturbed by coloured and spatially correlated noise.

关键词： Fusion reactors Geometry Maximum likelihood estimation Temperature sensors Partial differential equations Frequency-domain analysis

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Fault-Independent Test-Generation for Software-Based Self-Testing

Fault-Independent Test-Generation for Software-Based Self-Te...

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IEEE International Symposium on On-Line Testing and Robust System Design

作者： Panagiotis Georgiou Xrysovalantis Kavousianos Riccardo Cantoro Matteo Sonza Reorda Dept. of Control and Computer Engineering Politecnico di Torino Italy

Software-based self-test (SBST) is being widely used in both manufacturing and in-the-field testing of processor-based devices and Systems-on-Chips. Unfortunately, the stuck-at fault model is increasingly inadequate to match the new and different types of defects in the most recent semiconductor technologies, while the explicit and separate targeting of every fault model in SBST is cumbersome due to the high complexity of the test-generation process, the lack of automation tools, and the high CPU-intensity of the fault-simulation process. Moreover, defects in advanced semiconductor technologies are not always covered by the most commonly used fault-models, and the probability of defect-escapes increases even more. To overcome these shortcomings we propose the first fault-independent SBST method. The proposed method is almost fully automated, it offers high coverage of non-modeled faults by means of a novel SBST-oriented probabilistic metric, and it is very fast as it omits the time-consuming test-generation/fault-simulation processes. Extensive experiments on the OpenRISC OR1200 processor show the advantages of the proposed method.

关键词： Circuit faults Logic gates Clocks Registers Testing Integrated circuit modeling

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Supporting Product Oriented Manufacturing: a Model Driven and Agent based Approach

Supporting Product Oriented Manufacturing: a Model Driven an...

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IEEE International Conference on Industrial Informatics (INDIN)

作者： Mikel López Jon Martín Unai Gangoiti Aintzane Armentia Elisabet Estévez Marga Marcos Dept. of Automatic Control and System Engineering ETSI Bilbao (UPV/EHU) Bilbao Spain Dept. Electronic and Automatic Engineering EPS de Jaén University of Jaén Jaén Spain

Product oriented manufacturing is aligned with one of the Industry 4.0 trends consisting of integrating all production systems. This implies shifting from a traditional view of manufacturing processes focused on production line in order to reduce costs, to a more flexible and customized product manufacturing. On the other hand, Multi Agent Systems (MAS) have been proved to be a suitable way to fulfill these requirements. However, a key aspect of the use of novel technologies is to offer methodologies and tools for supporting the implementation of such systems. In this sense, this paper uses Model Driven engineering and MAS technology to propose an architecture that is able to launch and execute a manufacturing execution plan. It focuses on the information models managed by architecture agents that can be customized to particular manufacturing plants as well as on the definition of agent templates.

关键词： Manufacturing processes Tools Ontologies Systems engineering and theory Industries

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Image Processing Techniques in Vision-Based Robot Navigation

Image Processing Techniques in Vision-Based Robot Navigation

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International Conference on control, Artificial Intelligence, Robotics & Optimization (ICCAIRO)

作者： Rodrigo Munguia Yolanda Bolea Antoni Grau Dept. of Computer Science CUCEI University of Guadalajara Guadalajara México Automatic Control Dept. Technical University of Catalonia UPC Barcelona Spain

ISBN: (纸本)9781538695777;9781538695760

Motivated by the problems of vision-based mobile robot map building and localization, we present a comparative study of statistical methods for matching image features in a wide base line between learning and recognition phases. A general methodology called feature-class method for the problem of fast matching image features in a wide base line is described in the context of mobile robots. The objective of this work is to discuss and to show the performance of such methods in an example of visual SLAM, with experiments done with real data.

关键词： Robots Image processing Navigation Principal component analysis Conferences Artificial intelligence Optimization

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Removal notice to "VitSeg: Weakly supervised vitiligo segmentation in skin image" [Comput. Med. Imag. Graph. 85 (2020) 101779]

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computerized medical imaging and graphics : the official journal of the computerized Medical Imaging Society 2021年 91卷 101954页

作者： Zhangxing Bian Siyu Xia Chao Xia Ming Shao Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing China Electrical Engineering and Computer Science University of Michigan Ann Arbor MI USA. Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing China. School of Electronics Information and Electrical Engineering ShangHai Jiao Tong University Shanghai China. Dept. of Computer and Information Science University of Massachusetts Dartmouth Dartmouth MA USA.

This article has been removed: please see Elsevier Policy on Article Withdrawal (https://***/about/our-business/policies/article-withdrawal). This article has been removed at the request of the Authors and Editor-in-Chief because complete consent was not obtained by the authors in accordance with journal policy prior to publication. The authors and the journal sincerely apologize for this oversight.

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Proof-of-principle experimental demonstration of twin-field type quantum key distribution

arXiv

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arXiv 2019年

作者： Zhong, Xiaoqing Hu, Jianyong Curty, Marcos Qian, Li Lo, Hoi-Kwong Center for Quantum Information and Quantum Control Dept. of Physics University of Toronto TorontoONM5S 1A7 Canada Center for Quantum Information and Quantum Control Dept. of Electrical & Computer Engineering University of Toronto TorontoONM5S 3G4 Canada EI Telecomunicación Dept. of Signal Theory and Communications University of Vigo VigoE-36310 Spain

The twin-field (TF) quantum key distribution (QKD) protocol and its variants are highly attractive because they can beat the well-known rate-loss limit (i.e., the PLOB bound) for QKD protocols without quantum repeaters. In this paper, we perform a proof-of-principle experimental demonstration of TF-QKD based on the protocol proposed by Curty et al. [38] which removes from the original TF-QKD scheme the need for post-selection on the matching of a global phase, and can deliver nearly an order of magnitude higher secret key rate. Furthermore, we overcome the major difficulty in the practical implementation of TF-QKD, namely, the need to stabilize the phase of the quantum state over kilometers of fiber. A Sagnac loop structure is utilized to ensure excellent phase stability between the different parties. Using decoy states, we demonstrate secret-key generation rates that beat the PLOB bound when the channel loss is above 40 dB. Copyright © 2019, The Authors. All rights reserved.

关键词： Quantum cryptography

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Formation control of Surface Marine Vehicles for Underwater Target Tracking Using Range Information

Formation Control of Surface Marine Vehicles for Underwater ...

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APCA International Conference on automatic control and Soft Computing (controlO)

作者： D. Moreno-Salinas N. Crasta A.M. Pascoal J. Aranda Dept. of Computer Science and Automatic Control National Distance Education University Madrid Spain Department of Electrical Engineering ISR/IST University of Lisbon Lisbon Portugal

In many of the marine applications, the availability of an accurate system to localize underwater targets using a group of surface vehicles equipped with acoustic sensors is of paramount importance. In this context, the surface vehicles must keep a well-defined formation with respect to the targets so as to maximize the range-based information available for target localization. In this paper, a target position estimation algorithm together with a simple formation control law to maintain an optimal configuration that maximizes range-related information for target localization and tracking are presented. The setup studied consists of a group of surface vehicles moving in formation and a target performing a predefined mission. The optimal formation is computed by maximizing the determinant of an appropriately defined Fisher information matrix (FIM), subject to inter-vehicle collision avoidance and vehicle manoeuvring constraints. A centralized approach for the formation control is considered, where the trajectory planning is carried out by a supervisor that computes the control actions for each agent. The formation control is complemented with a collision avoidance logic based on a discrete event law. Simulations show that this strategy leads to an interesting and well defined behavior of the formation for localization and tracking.

关键词： Target tracking Collision avoidance Robot sensing systems Estimation Position measurement Mobile robots

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A Comprehensive MOOC Creation Approach

A Comprehensive MOOC Creation Approach

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Learning With MOOCS (LWMOOCS)

作者： Leonardo Favario Dept. of Computer and Control Engineering Politecnico di Torino Torino TO Italy

ISBN: (纸本)9781538665343

In the last decade, the world of online education has seen the advent of Massive Open Online Courses. The secret behind those courses lies in the scale: potentially, millions of people can access them and take advantage of the educational resources wherever they are on the planet. Creating successful courses is challenging since it requires an extended portfolio of skills. However, not all the necessary attentions have been provided to the content creators who, most of the times, do not have an extended knowledge of the complex technologies required in order to efficiently prepare a MOOC. This paper focuses on this issue introducing a set of integrated e-learning tools offering an enhanced MOOC creation experience. The preliminary users already prepared some courses exploiting this novel approach and are willing to collaborate to craft the next improved version of the platform.

关键词： Tools Electronic learning Webcams Microphones computer architecture Search engines

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