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International IEEE Conference and Workshop: Óbuda on Electrical and Power Engineering (CANDO-EPE)

作者： Imre Farkas Attila Kovari Mónika Rajcsanyi-Molnar Department of Computer Systems and Control Technology Institute of Computer Engineering University of Dunaujvaros Dunaujvaros Hungary Institute of Digital Technology Faculty of Computer Science Eszterházy Károly Catholic University Eger Hungary Institute of Electronics and Communication Systems Kandó Kálmán Faculty of Electrical Engineering Obuda University Budapest Hungary GAMF Faculty of Engineering and Computer Science John Von Neumann University Kecskemét Hungary Department of Economics and Management Institute of Social Sciences University of Dunaujvaros Dunaujvaros Hungary

ISBN: (数字)9798331531119

ISBN: (纸本)9798331531126

During the COVID19 epidemic, people of all ages from all walks of life around the world have become inevitably familiar with and almost dependent on the digital tools of the age and the opportunities they offer. A change had to take place very quickly that was unprecedented. This process has also affected education. During the time of the reading lock-in, there was a proliferation of digital curricular content. The second time around, online education came to the fore, thanks to less or well-functioning online platforms, and has since become part of everyday teaching. What is the effectiveness and usefulness of sharing knowledge in this way? Is literacy still needed at all? Can online and hybrid (a controlled mix of face-to-face and online) education replace the well-established contact and face-to-face education? The study show that the respondents believe that online education has had an impact on literacy and that it is perceived to have a positive impact. The results indicate that online education has a positive impact on the literacy levels of students, as it facilitates knowledge acquisition and enhances digital literacy skills.

关键词： Power engineering Epidemics Navigation Knowledge acquisition Digital transformation Education Information age Digital intelligence Cultural differences Problem-solving

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Research on a full envelop controller for an unmanned ducted-fan helicopter based on switching control theory

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Science China(Technological Sciences) 2019年第10期62卷 1837-1844页

作者： WANG Yin SONG HongYi LI Qiang ZHANG Hui College of Astronautics Nanjing University of Aeronautics and AstronauticsNanjing210016China Science and Technology on Aircraft Control Laboratory Flight Automatic Control Research InstituteXi’an710000China

Rotor and ducted-fan structured unmanned helicopters have shown energy efficiency in low flight speed and hovering, due to the novel ducted-fan structure. However, its aerodynamic characteristics may change dramatically when flight at higher speed,resulting in a wide flight envelope when compared with conventional structured helicopters. Hence, the flight controller is required to schedule itself based on the flight states and guarantees the overall performances of the helicopter on the entire flight envelop. This paper presents a switching system theory based approach to design the optimal controllers over a wide region of flight envelop. In the proposed method, a family of robust controller are designed based on typical operational conditions and the controller is adjusted to guarantee the stability when the switching event is trigged. A hysteresis switching logic is utilized to ensure smooth transient between specific operational subspaces. The stability of the proposed control method was analyzed through Lyapunov theory. Nonlinear simulations based flight dynamics of the prototype helicopter have demonstrated the flexibility and efficiency of the proposed work.

关键词： switching system robust control unmanned helicopter flight control

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Revisiting weak values through non-normality

arXiv

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arXiv 2023年

作者： Ferraz, Lorena Ballesteros Muolo, Riccardo Caudano, Yves Carletti, Timoteo naXys Namur Institute for Complex Systems University of Namur Belgium NISM Namur Institute of Structured Matter University of Namur Belgium Department of Physics University of Namur Belgium Department of Systems and Control Engineering Tokyo Institute of Technology 2 Chome-12-1 Ookayama Tokyo152-8550 Japan Department of Mathematics University of Namur Belgium

Quantum measurement is one of the most fascinating and discussed phenomena in quantum physics, due to the impact on the system of the measurement action and the resulting interpretation issues. Scholars proposed weak measurements to amplify measured signals by exploiting a quantity called a weak value, but also to overcome philosophical difficulties related to the system perturbation induced by the measurement process. The method finds many applications and raises many philosophical questions as well, especially about the proper interpretation of the observations. In this paper, we show that any weak value can be expressed as the expectation value of a suitable non-normal operator. We propose a preliminary explanation of their anomalous and amplification behavior based on the theory of non-normal matrices and their link with non-normality: the weak value is different from an eigenvalue when the operator involved in the expectation value is non-normal. Our study paves the way for a deeper understanding of the measurement phenomenon, helps the design of experiments, and it is a call for collaboration to researchers in both fields to unravel new quantum phenomena induced by non-normality. © 2023, CC BY-SA.

关键词： Design of experiments

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The Optimal Astatic Observer for the Identification of Disturbances in Electric Drives of Robotic systems

The Optimal Astatic Observer for the Identification of Distu...

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International Russian Automation Conference (RusAutoCon)

作者： Aleksey A. Kabanov Alexander V. Zuev Alexander A. Protsenko Department of Informatics and Control in Technical Systems Sevastopol State University Sevastopol Russian Federation Institute of Marine Technology Problems named after Academician M D. Ageev Far Eastern Branch of the Russian Academy of Sciences Vladivostok State University Vladivostok Russian Federation

ISBN: (数字)9798350349818

ISBN: (纸本)9798350349825

The article considers the problem of constructing a system for identifying disturbing influences in electric drives of robotic systems. An approach based on the use of optimal observers is used to solve it. This avoids the disadvantages of other identification methods, such as the need for high-frequency switching of sliding observers. Optimal observers are proposed to be built on the basis of special reduced models of the initial system, which simplifies their implementation. Using a special procedure for synthesizing an observer, it is also possible to give it the property of astatism and eliminate the static error in determining the magnitude of the disturbance. The effectiveness of the proposed system was confirmed by computer simulation.

关键词： Automation Computational modeling Computer simulation Switches Observers Drives Robots

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Efficacy and biosafety assessment of neuropeptide CAPA analogues against the peach-potato aphid (Myzus persicae)

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Insect Science 2022年第2期29卷 521-530页

作者： Yan Shi Ronald J.Nachman Shun-Hua Gui Niels Piot Krzysztof Kaczmarek Janusz Zabrocki Julian A.T.Dow Shireen-A.Davies Guy Smagghe College of Plant Health and Medicine Qingdao Agricultural UniversityQingdaoShandongChina Laboratory of Agrozoology Department of Plants and CropsFaculty of Bioscience EngineeringGhent UniversityGhentBelgium U.S.Department of Agriculture Insect Neuropeptide LaboratoryInsect Control and Cotton Disease Research UnitSouthern Plains Agricultural Research CenterCollege StationAustinTexasUSA Institute of Entomology Guizhou UniversityGuiyangGuizhouChina Institute of Organic Chemistry Lodz University of TechnologyLodz90-924 Poland College of Medical Veterinary and Life SciencesInstitute of MolecularCell and Systems BiologyUniversity of GlasgowGlasgowUK

Insect CAPA neuropeptidesare considered to affect water and ion balance by mediating the physiological metabolism activities of the Malpighian *** previous studies,the CAPA-PK analogue 1895(2Abf-Suc-FGPRLamide)was reported to decrease aphid fitness when administered through microinjection or via topical ***,a further statistically significant decrease in the fitness of aphids and an increased mortality could not be established with pairwise combinations of 1895 with other CAPA *** this study,we assessed the topical application of new combinations of 1895 with five CAPA-PVK analogues on the fitness of *** found that 1895 and CAPA-PVK analogue 2315(ASG-[β3L]-VAFPRVamide)was statistically the most effective combination to control the peach potato aphid Myzus persicae nymphs via topical application,leading to 72%***,the combination(1895+2315)was evaluated against a selection of beneficial insects,that is,a pollinator(Bombus terrestris)and three natural enemies(Chrysoperla carnea,Nasonia vitripennis,and Adalia bipunctata).We found no significant influence on food intake,weight increase,and survival for the pollinator and the three representative natural *** results could facilitate to further establish and generate CAPA analogues as alternatives to broad spectrum and less friendly insecticides.

关键词： biosafety assessment insecticidal agents Myzus persicae neuropeptide CAP2b analogues

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A novel robotic visual perception framework for underwater operation

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Frontiers of Information technology & Electronic Engineering 2022年第11期23卷 1602-1619页

作者： Yue LU Xingyu CHEN Zhengxing WU Junzhi YU Li WEN State Key Laboratory of Management and Control for Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China Ytech Kuaishou TechnologyBeijing 100085China State Key Laboratory for Turbulence and Complex Systems Department of Advanced Manufacturing and RoboticsCollege of EngineeringPeking UniversityBeijing 100871China School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China

Underwater robotic operation usually requires visual perception(e.g.,object detection and tracking),but underwater scenes have poor visual quality and represent a special domain which can affect the accuracy of visual *** addition,detection continuity and stability are important for robotic perception,but the commonly used static accuracy based evaluation(i.e.,average precision)is insufficient to reflect detector performance across *** response to these two problems,we present a design for a novel robotic visual perception ***,we generally investigate the relationship between a quality-diverse data domain and visual restoration in detection *** a result,although domain quality has an ignorable effect on within-domain detection accuracy,visual restoration is beneficial to detection in real sea scenarios by reducing the domain ***,non-reference assessments are proposed for detection continuity and stability based on object ***,online tracklet refinement is developed to improve the temporal performance of ***,combined with visual restoration,an accurate and stable underwater robotic visual perception framework is ***-overlap suppression is proposed to extend video object detection(VID)methods to a single-object tracking task,leading to the flexibility to switch between detection and *** experiments were conducted on the ImageNet VID dataset and real-world robotic tasks to verify the correctness of our analysis and the superiority of our proposed *** codes are available at https://***/yrqs/VisPerception.

关键词： Underwater operation Robotic perception Visual restoration Video object detection

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Provably robust verification of dissipativity properties from data

arXiv

引用

arXiv 2020年

作者： Koch, Anne Berberich, Julian Allgöwer, Frank Institute for Systems Theory and Automatic Control University of Stuttgart

—Dissipativity properties have proven to be very valuable for systems analysis and controller design. With the rising amount of available data, there has therefore been an increasing interest in determining dissipativity properties from (measured) trajectories directly, while an explicit model of the system remains undisclosed. Most existing approaches for data-driven dissipativity, however, guarantee the dissipativity condition only over a finite time horizon and provide weak or no guarantees on robustness in the presence of noise. In this paper, we present a framework for verifying dissipativity properties from measured data with desirable guarantees. We first consider the case of input-state measurements, where we provide non-conservative and computationally attractive conditions even in the presence of noise. We then extend this approach to input-output data, where similar results hold in the noise-free case. Copyright © 2020, The Authors. All rights reserved.

关键词： Linear systems

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Iterative data-driven inference of nonlinearity measures via successive graph approximation

arXiv

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arXiv 2020年

作者： Martin, Tim Allgöwer, Frank Institute for Systems Theory and Automatic Control University of Stuttgart

—In this paper, we present an iterative data-driven approach to derive guaranteed bounds on nonlinearity measures of unknown nonlinear systems. In this connection, nonlinearity measures quantify the strength of the nonlinearity of a dynamical system by the distance of its input-output behaviour to a set of linear models. First, the computation of a guaranteed bound of these measures by given input-output data based on a nonparametric data-based model of the unknown system and local inferences of nonlinearity measures is presented. Second, we propose an iterative scheme to improve this bound iteratively by further samples of the unknown input-output behaviour. Copyright © 2020, The Authors. All rights reserved.

关键词： Dynamical systems

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Application of Petri Nets for Modeling Ore Flows to Create Dynamic Management and Quality control System in Mineral Resource Complexes

Application of Petri Nets for Modeling Ore Flows to Create D...

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International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM)

作者： Pavel Larichev Vadim Tynchenko Ivan Nekrasov Information-Control Systems Department Institute of Computer Science and Telecommunications Reshetnev Siberian State University of Science and Technology Krasnoyarsk Russian Federation Artificial Intelligence Technology Scientific and Education Center Bauman Moscow State Technical University Moscow Russia Laboratory of Biofuel Composition Siberian Federal Univercity Krasnoyarsk Russian Federation

ISBN: (数字)9798350395013

ISBN: (纸本)9798350395020

The article discusses the issue of creating a dynamic system for managing and monitoring the quality of ore flow in mineral resource complexes using simulation modeling. The purpose of this study is to adapt the mathematical apparatus of Petri nets to such modeling. The article describes the choice and justification of the simulation modeling apparatus and provides a conceptual representation of the ore flow model in the form of an adaptation of a continuous Petri net. An architectural solution is proposed that covers a number of processes, such as geological exploration, mining, moving loads in the business processes of enterprises, but also to support the rock mass. The proposed architecture is being coordinated with information systems and software and hardware of mining enterprises, which makes it possible to identify data needs for the formation of technical specifications for the correction of business processes. The proposed control system will make it possible to implement simulation modeling both in model and real time for timely and adequate assessment of the progress of work being carried out and clarifying the reasons for the lag behind planned schedules using a Petri net.

关键词： Adaptation models Ores Petri nets Mathematical models Real-time systems Delays Data mining

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Investigation of automatic Part-of-Speech Tagging using CRF, HMM and LSTM on Misspelled and Edited Texts 5

Investigation of Automatic Part-of-Speech Tagging using CRF,...

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5th Artificial Intelligence and Cloud Computing Conference, AICCC 2022

作者： Aydinov, Farhad Huseynov, Igbal Sayadzada, Sofiya Rustamov, Samir Data Science University of Glasgow United Kingdom Computational Linguistics and Language Technologies Charles University Prague Czech Republic Department of Applied Mathematics and Computer Science Technical University of Denmark Copenhagen Denmark School of Information Technology and Engineering ADA University Baku Azerbaijan Institute of Control Systems BakuVarna Bulgaria Azerbaijan

ISBN: (纸本)9781450398749

Part-of-speech tagging is the process of assigning words in a given text to appropriate parts-of speech in order to reduce the disambiguation which may arise depending on the contextual usage of the words. In this paper, the problem of word sense disambiguation in Azerbaijani language is addressed by applying part of speech tagging on two varying data corpora, misspelled, and edited (clean) text using 3 different machine learning algorithms: Hidden Markov Model, Long Short-Term Memory, and Conditional Random Fields. The comparative analysis on the outcomes of the mentioned algorithms and their accuracy scores were analysed in the paper. The misspelled dataset for the experiments is provided by Unibank from their chatbot dialogues while the clean textual data was retrieved from the books and newspapers in Azerbaijani. The experiments showed that the Bidirectional LSTM has the highest accuracy scores for both edited (98.2%) and noisy (96.2%) data corpora. Suggested models can be used in the application of algorithms focuses on part of speech tags and syntactic structure of Azerbaijani language which is an agglutinative language belonging to Turkic languages family, thus enabling the research to be further investigated in other agglutinative languages with similar grammatical structure. © 2022 ACM.

关键词： Hidden Markov models

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