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A content based image retrieval approach based on document queries

A content based image retrieval approach based on document q...

2014 International Conference on Image Processing, Computer Vision, and Pattern Recognition, IPCV 2014, at WORLDCOMP 2014

作者： Ilie, M. 'Dunarea de Jos' University of Galati Faculty of Automatic Control Computers Electrical and Electronics Engineering Galati Romania

ISBN: (纸本)1601322801

This paper presents a new content based image retrieval (CBIR) approach, which makes use of descriptors originating in the local and global search spaces. The algorithms extracts four colour descriptors, one texture descriptor and two local descriptors which are used to train the corresponding classifiers, based on neural networks. Subsequently, the classifiers are grouped in two weighted majority voting modules, for local and global characteristics. The system is tested on regular images and on document scans obtained from two datasets used a benchmarks in previous conferences, in order to verify the architecture robustness. The experimental results demonstrate the effectiveness of the proposed model. © 2014 CSREA Press.

关键词： Textures

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Fast and scalable constrained reference tracking for discrete-time linear systems

Fast and scalable constrained reference tracking for discret...

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European control Conference

作者： Sabin - Constantin Carpiuc Mircea Lazar Veaceslav Spinu Department of Automatic Control and Applied Informatics Technical University "Gheorghe Asachi" of Iasi Department of Electrical Engineering Eindhoven University of Technology

ISBN: (纸本)9781467371605

This paper considers the synthesis of tracking control laws for discrete-time linear systems. A two-step approach that results in a sequence of quadratic contractive sets is proposed. Firstly, the quadratic sets are obtained by maximizing the size of the sets. Then, secondly, a conic partition is employed to construct continuous conewise linear control laws for each quadratic set while optimizing performance. Furthermore, a set-theoretic method is employed to extend the stabilizing law for the tracking control problem. As a result it yields scalable off-line computation of the control law. Moreover, this approach provides stability guarantees and constraints satisfaction. The effectiveness of the approach is demonstrated using an illustrative example.

关键词： control law Scalability tracking control constraint satisfaction problems line computation Fasting Linear system discrete-time Quadratic discrete time systems SETTING off-line computation

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A platform independent access control metamodel for web services

Periodica polytechnica Electrical engineering and computer s...

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Periodica polytechnica electrical engineering and computer science 2014年第3期58卷 93-108页

作者： Simon, Balázs Goldschmidt, Balázs Kondorosi, Károly Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Magyar tudósok krt. 2. BudapestH-1117 Hungary

Web services provide platform independent communication through an XML-based standard family. The major software vendors released their own SOA products implementing these standards. However, the configuration of the WS-∗protocols differs from product to product. Matching these configurations between different products can be a tedious task. In addition, security protocols are complicated to configure, especially if access control is also required. Although the XACML standard aims to solve this problem, its rules and policies described in XML are not user friendly, and XACML has little support in the major SOA products. Therefore, we have developed a platform independent metamodel for describing distributed systems of web services. From models described in this metamodel the platform specific configurations and program code can be generated for the various SOA products, increasing the productivity of the development. This article introduces an access control extension to this metamodel. © 2014, Technical University of Budapest. All rights reserved.

关键词： Web services

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The Determination of the Shelf Mass in the Universal Shelving Stacker by Measuring the Frequency Converter Torque Generating Current of the Main Drive

Manufacturing Technology

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Manufacturing Technology 2015年第3期15卷 30-30页

作者： Kollár, Pavol Nikitin, Yuri Straka, Martin Department of Electrical Engineering and Mechatronics Faculty of Electrical Engineering and Informatics Technical university of Kosice Letna 9 Kosice042 00 Slovakia Department of Mechatronic Systems Kalashnikov Izhevsk State Technical University "Mechatronic Systems" Department Izhevsk Russia Logistics Institute of Industry and Transport Faculty of Mining Ecology Process Control and Geotechnology Technical university of Kosice Park Komenskeho 14 Kosice043 84 Slovakia

The correct determination of the shelf mass including content is very important for the proper function of a universal shelf stacker (USS) drives life and construction USS so that these elements were not overloaded. Weighing can be done by direct methods using various sensors tension and compression but also the indirect method, by the torque sensing of current frequency converter, which controls the speed of the three-phase asynchronous motor. This method does not require any additional construction or adaptation or additional sensors or electronic evaluation system power operation. Weighting method of shelf in USS is based on the fact that the torque converter current is proportional to the sum of the weight of the shelf and the extractor and its value provides almost every frequency converter. In contrast to the direct weighing method of the shelf it is obvious economic advantage of this method and the accuracy is sufficient for the operation of USS. Copyright © 2015. Published by Manufacturing Technology. All rights reserved.

关键词： Frequency converters

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Extremum seeking control for an anaerobic digestion process

Extremum seeking control for an anaerobic digestion process

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Sergiu Caraman George Ifrim Emil Ceangă Marian Barbu Mariana Titica Radu-Emil Precup Department of Automatic Control and Electrical Engineering “Dunarea de Jos” University of Galati Galati Romania Universite de Nantes CNRS GEPEA UMR-CNR 6144 Bd. de l'Universite France Department of Automation and Applied Informatics Politehnica University of Timisoara Timisoara Romania

The paper deals with the optimal control (extremum seeking algorithm) of an anaerobic digestion process. It uses a simplified version of the anaerobic digester model. Three cases of optimization criteria are considered taking into account the quality variable of the process: 1. the methane quantity in gaseous form, 2. the level of pollutants (it is expressed as the difference between the influent substrate and the substrate quantities accumulated in the digester) and 3. an aggregated quality variable resulted from the combination of the first two criteria. The analysis of anaerobic digestion process static characteristics shows that each characteristic reaches a point of maximum. The extremum seeking algorithm aims to keep the operating point in this point of maximum. The simulation results confirm the good behaviour of the extremum seeking algorithm.

关键词： Mathematical model Process control Biological system modeling Microorganisms Carbon dioxide Optimization Substrates

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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

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BMC NEUROSCIENCE 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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Design of continuous-time controllers using cartesian genetic programming 19

Design of continuous-time controllers using cartesian geneti...

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19th IFAC World Congress on International Federation of automatic control, IFAC 2014

作者： Kadlic, Branislav Sekaj, Ivan Pernecký, Daniel Institute of Control and Industrial Informatics Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava Slovakia

ISBN: (纸本)9783902823625

An evolutionary computation - based design/optimisation approach using the Cartesian Genetic Programming is proposed for non-linear continuous-time process control. It is a simplification of a more general Genetic Programming - based design, which is powerful, but more computationally demanding. The approach is able to produce effective and non-intuitive controllers in the form of a network of interconnected elementary building blocks, which minimize the defined performance index. Each building block performs mathematic operations between its inputs, next it contains gain and an elementary dynamic part as integrator, derivative or unity gain. The proposed design method is demonstrated on water turbine control design, and the results are compared with the genetic algorithm-based PID controller design. © IFAC.

关键词： controllers

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ROBUST controlLER DESIGN WITH INPUT CONSTRAINTS: FREQUENCY DOMAIN APPROACH

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IFAC-PapersOnLine 2015年第14期48卷 376-381页

作者： Vojtech Veselý Jakub Osuský Institute of Control and Industrial Informatics Faculty of Electrical Engineering and Information Technology Slovak University of Technology Ilkovičova 3 812 19 Bratislava Slovak Republic Tel.: +421 2 60291111 Fax: +421 2 60291111 Institute of Automotive Mechatronics Faculty of Electrical Engineering and Information Technology Slovak University of Technology Ilkovičova 3 812 19 Bratislava Slovak Republic Tel.: +421 2 60291111 Fax: +421 2 60291111

A novel approach to robust controller design with input hard constraints is presented. The proposed design procedure contains robust stability condition based on the M-delta structure and it is used for additive and inverse additive uncertainty types. The obtained design results and their properties are illustrated on simulation example.

关键词： Robust controller Small Gain Theorem M-delta structure Hard input constraints

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WPT in power quality measurement system based on digital signal processor

WPT in power quality measurement system based on digital sig...

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International Conference on Harmonics and Quality of Power

作者： Krzysztof Górecki Faculty of Electrical Engineering Automatic Control and Informatics Opole University of Technology Opole Poland

This paper presents possible use of floating-point signal processor for the purpose of measuring harmonics and interharmonics and for detection of transient events in real-time. WPT and its characteristics to decompose signal into components were applied as calculation method. Also various wavelet-based and IIR filters were analysed. The main reason for that was to check the time used for the decomposition process in accordance with the WPT tree for 5 decomposition levels of the measurement window according to the quality standards of electricity.

关键词： Power harmonic filters IIR filters Finite impulse response filters Power measurement Harmonic analysis Power quality Transforms

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Challenges in the design of the MAC protocols for wireless sensor networks using VHDL 10

Challenges in the design of the MAC protocols for wireless s...

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10th International Symposium on Telecommunications, BIHTEL 2014

作者： Kaljic, Enio Aksamovic, Abdulah Department of Telecommunication Faculty of Electrical Engineering University of Sarajevo Zmaja od Bosne 71000 Bosnia and Herzegovina Department of Automatic Control and Electronics Faculty of Electrical Engineering University of Sarajevo Zmaja od Bosne 71000 Bosnia and Herzegovina

ISBN: (纸本)9781479941360

In the design of MAC protocols for wireless sensor networks (WSN) it is necessary to fulfill some requirements such as low energy consumption, scalability, simplicity, etc. These requirements are not easy to fulfill from the viewpoint of implementation on FPGA or ASIC technologies. Therefore, in this paper we identify some challenges encountered during the design of MAC protocol for WSN. For some of these challenges, potential solutions are discussed. To illustrate the proposed solutions SMAC protocol is chosen. VHDL design of the S-MAC protocols is experimentally verified on the Altera EP2C5 FPGA development system. © 2014 IEEE.

关键词： Wireless sensor networks

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