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IEEE Annual Conference on Decision and control

作者： Mahrokh GhoddousiBoroujeni Dominik Fay Christos Dimitrakakis Maryam Kamgarpour Department of Electrical Engineering Sharif University of Technology Iran EECS school KTH Royal Institute of Technology Sweden Computer Science and Engineering faculty Chalmers University of Technology Sweden Automatic Control Laboratory ETH Zurich Switzerland

ISBN: (数字)9781728113982

ISBN: (纸本)9781728113999

Installing smart meters to publish real-time electricity rates has been controversial while it might lead to privacy concerns. Dispatched rates include fine-grained data on aggregate electricity consumption in a zone and could potentially be used to infer a household's pattern of energy use or its occupancy. In this paper, we propose Blowfish privacy to protect the occupancy state of the houses connected to a smart grid. First, we introduce a Markov model of the relationship between electricity rate and electricity consumption. Next, we develop an algorithm that perturbs electricity rates before publishing them to ensure users' privacy. Last, the proposed algorithm is tested on data inspired by household occupancy models and its performance is compared to an alternative solution.

关键词： Hidden Markov models Privacy Data models Real-time systems Data privacy Pricing Smart grids

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Local search algorithms for memetic algorithms: understanding behaviors using biological intelligence

Local search algorithms for memetic algorithms: understandin...

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

作者： Beatrice Luca Mitica Craus Department of Computer Science Faculty of Automatic Control and Computer Engineering Iasi Romania

Memetic Algorithms (MAs) are a class of stochastic global search heuristics in which Evolutionary Algorithms (EAs) - based approaches are combined usually with heuristic local searches. This hybridization is meant to reach solutions that would otherwise be unreachable by evolution or a local method alone. In this work, we propose three Local Search (LS) algorithms for hybridization with an existing Evolutionary Algorithm with Pareto ranking in order to define biological intelligence using the concepts of useful and utility and therefore to zoom on the basin of attraction of promising realistic solutions. Our experimental results with these memetic algorithms in the game of Checkers show how we can learn the organization of behaviors into paths of behaviors of different lengths and frequencies and then reveal the true nature of these behaviors.

关键词： Correlation Sociology Memetics Optimization Ice

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Polynomial Observer for Interval Positive Polynomial Systems

Polynomial Observer for Interval Positive Polynomial Systems

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International Conference on Systems and control (ICSC)

作者： Imen Iben Ammar Hamdi Gassara Ahmed El Hajjaji Fernando Tadeo Mohamed Chaabane National School of Engineers Sfax Laboratory of Sciences and Techniques of Automatic control & computer engineering ENIS PB 1173 Sfax Tunisia Modeling Information and Systems (MIS) Laboratory 33 Rue St Leu Amiens University of Picardie Jules Verne France Department of Systems Engineering and Automatic University of Valladolid Valladolid Spain

This paper is concerned with the design of polynomial observers for positive polynomial interval systems. In order to design the polynomial observer a solution based on Sum Of Squares (SOS) programming is provided. The design conditions are presented in terms of SOS, which can be numerically and symbolically solved via SOSTOOLS and a Semi-Definite Program (SDP) solver. Finally, numerical examples are given to show the feasibility of the proposed approaches.

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Privacy of real-time pricing in smart grid

arXiv

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arXiv 2019年

作者： GhoddousiBoroujeni, Mahrokh Fay, Dominik Dimitrakakis, Christos Kamgarpour, Maryam Department of Electrical Engineering Sharif University of Technology Iran EECS school KTH Royal Institute of Technology Sweden Computer Science and Engineering faculty Chalmers University of Technology Sweden Automatic Control Laboratory D-ITET ETH Zurich Switzerland

关键词： Electric power utilization

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Actuation attacks on constrained linear systems: A set-theoretic analysis

arXiv

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arXiv 2019年

作者： Trodden, P.A. Maestre, J.M. Ishii, H. Department of Automatic Control Ystems Engineering University of Sheffield Sheffield United Kingdom Departmento de Ingenieria de Sistemas y Automatica University of Seville Seville Spain Department of Computer Science Tokyo Institute of Technology Yokohama Japan

This paper considers a constrained discrete-time linear system subject to actuation attacks. The attacks are modelled as false data injections to the system, such that the total input (control input plus injection) satisfies hard input constraints. We establish a sufficient condition under which it is not possible to maintain the states of the system within a compact state constraint set for all possible realizations of the actuation attack. The developed condition is a simple function of the spectral radius of the system, the relative sizes of the input and state constraint sets, and the proportion of the input constraint set allowed to the attacker. Copyright © 2019, The Authors. All rights reserved.

关键词： Linear systems

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Brain Mapping using a Blockchain Approach

Brain Mapping using a Blockchain Approach

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E-Health and Bioengineering Conference (EHB)

作者： Felix-Constantin Adochiei Radu Ciucu Ioana Raluca Adochiei Florin Ciprian Argatu Bogdan Enache Casian Miron George Seritan Faculty of Electrical Engineering University Politehnica of Bucharest Romania Department of Aircraft Integrated Systems and Mechanics Military Technical Academy "Ferdinand I" Bucharest Romania Faculty of Automatic Control and Computer Engineering "Gheorghe Asachi" Technical University of Iasi Romania

In this paper we propose a pipeline for brain mapping using a decentralized database with a blockchain architecture. We use a two-layer model for a distributed imaging data ledger capable of version control and authoring augmented data. Our platform is capable of direct volume rendering inside a browser window using WebGL. The data visualization pipeline allows for real-time multi-intensity transfer functions and global opacity of a given imaging recording. The platform is intended as a collaboration tool for multiple imaging laboratories and institutes and aims to help in organizing augmented data and multiple level-of-detail recordings used on a wide array of devices. We believe our platform will aid in brain mapping efforts for classification, measurement and visualization of cortical structures trough the aid of virtual reality and a scalable backend based on a standard blockchain technology.

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Investigation of the diagnostic properties of sensors and features in a multiphase flow facility case study ⁎

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IFAC-PapersOnLine 2019年第1期52卷 772-777页

作者： Anna Stief James R. Ottewill Jerzy Baranowski ABB Corporate Research Center ul. Starowislna 13a 31-038 Krakow Poland Department of Automatic Control and Robotics Faculty of Electrical Engineering Automatics Computer Science and Biomedical Engineering AGH University of Science and Technology Al. A. Mickiewicza 30 30-059 Krakow Poland

Feature design and selection is one of the first steps towards successful fault detection and diagnosis. Data from different sources can contain complimentary information about a monitored system. Hence methods which fuse features from multiple sources can often detect and diagnose a greater number of fault modes with higher confidence. However, solutions that require data from multiple sensors as inputs can be susceptible to failure if one or more of those sensors cease to function. Optimally a solution will fuse data from a sufficient number of sensors so that the advantages of sensor fusion are realized, while the robustness of the system is retained. In this paper the authors investigate how the best subset of features might differ for fault detection and fault severity diagnosis in a multiphase flow facility case study. ReliefF, which is a K-nearest neighbors-based feature selection filter, is used to rank the features for different problems. The dataset used for the analysis contains data from various operating conditions and induced faults with various severities. It was found that the optimal subset of features varied for different monitoring problems. It was also shown that including features that are ranked as being uninformative into a fault classifier can also impact the robustness of the classifier to sensor failures.

关键词： Signal processing Feature extraction Feature selection Process monitoring

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Green Energy Sources: Issues and Challenges

Green Energy Sources: Issues and Challenges

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Roedunet International Conference (RoEduNet)

作者： Mostafa Abdulghafoor Mohammed Inas Adnan Mohammed Raed.A. Hasan Nicolae Ţăpuş Ahmed Hussien Ali Omar A. Hammood Faculty of Automatic Control and Computers University Polytechnic of Bucharest/Romania The Great Emam University College Baghdad University of Information Technology and Communications / college of Engineering/ Baghdad Iraq Faculty of Al-dour Technical institute Northern Technical University Mosel IRAQ Faculty of Automatic Control and Computers University Polytechnic of Bucharest/Romania Computer Science Department AL Salam University College Baghdad Iraq Faculty of Computer Systems and Software Engineering UniversityMalaysia Pahang Malaysia

Mobile offloading is a platform that facilitates the distribution of computationally intensive tasks from mobile devices to the cloud or other devices in order to conserve energy and improve performance. The concept is practically based on the idea of exchanging relatively low communication energy for high computation power utilization. Efforts have been channeled towards energy conservation by clusters using Dynamic Power Management (DPM). This paper is a review for green energy sources for reducing energy and using energy consumption to manage sources by stating the latest studies of energy consumption and energy consumptions.

关键词： Energy consumption Task analysis Servers Energy efficiency Power system management Voltage control Cloud computing

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Complex issues in regulator designing

Complex issues in regulator designing

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2018 International Russian Automation Conference, RusAutoCon 2018

作者： Zhmud, Vadim A. Hardt, Wolfram Dimitrov, Lubomir V. Roth, Hubert Department of Automation Novosibirsk State Technical University Novosibirsk Russia Department of Computer Science Chemnitz University of Technology Chemnitz Germany Technical University of Sofia Sofia Bulgaria Department of Automatic Control Engineering University of Siegen Siegen Germany

ISBN: (纸本)9781538649381

The problem of control object with the use of feedback loop is extremely relevant, because only this method provides for the accurate control. It happened that the theory of automatic control paid much attention to the methods of regulators design based on mathematical transformations, using a mathematical model of the object. It describes the transformation of an input signal into an output signal inside the object. The methods were imperfect, so one of the following simplification methods was the most frequently used: the mathematical model of the object was simplified, or the calculations were carried out with approximation, for example, the oscillations in the system were studied by the amplitude and phase of the first harmonic only. Therefore, the result of using such regulators in practice did not exactly correspond to the theory provisions. To get mathematical and experimental basis of system developer tool, a solution of the elementary sub-problems was required. Among them there are tasks of the control of an object of the first and second order. Today the situation has changed. There is a means of sufficiently accurate mathematical modeling of the behavior of the system consisting of the loop with an object and a regulator. There are software and mathematical means for regulator calculating by the method of numerical optimization. Now there is sufficient software for calculating the regulators of the object, having a rather complex mathematical model. However, this did not change the situation. A lot of articles are still published, in which it is suggested performing additional fine tuning to achieve the required parameters after calculating the regulator and its technical implementation. Quite a big number of articles is still being published;they consider the methods of the empirical tuning of regulators based on the parameters of the transient process with a given fixed gain coefficient. This situation demonstrates insufficient using of the important th

关键词： Mathematical transformations

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Information support of daily scrum meetings 13

Information support of daily scrum meetings

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13th International Conference on Strategic Management and Its Support by Information Systems, SMSIS 2019

作者： Ministr, Jan Pitner, Tomas Danel, Roman Chaplyha, Vyacheslav VSB - Technical University of Ostrava Faculty of Economics Department of Applied Informatics 17. Listopadu 2172/15 Ostrava-Poruba70800 Czech Republic Masaryk University Faculty of Informatics Department of Computer Systems and Communications Botanická 68a Brno Czech Republic Technical and Economic University in Českś Budějovice Faculty of Technology Department of Civil Engineering Okružní 517/10 Českś Budějovice370 01 Czech Republic Lviv National Agrarian University Department Automatic Control and Computer-Integrated Technologies 1 V. Velykoho Str. Dublyany Lviv region80381 Ukraine

ISBN: (纸本)9788024843063

The vast majority of the software developers use the agile framework for project management. Agile approach provides more flexibility and adaption to the changes against classic software development approach. The key methodology of agile approach represents the scrum. The core of scrum management forms sprint, which represents a time shift activity and envelops all other events of scrum. The outcome of the sprint should be the increment in development of the project, which is possible to submit to the customers or the users. The paper maps the possibilities of visualization of the course of individual sprints at everyday meetings of the research team (stand up meetings), which have a decisive influence on the quality of communication of the research team and the overall success of the project. © 2019 VSB-Technical University of Ostrava. All rights reserved.

关键词： Project management

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