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A SCORM based package model for WebLabs

A SCORM based package model for WebLabs

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Frontiers in Education (FIE) Conference

作者： Ildefonso Ruano-Ruano Javier Gámez-García Sebastián Dormido Bencomo Juan Gómez Ortega GRAV Group University of Jaén Jaén Spain Dept. of Computer Science and Automatic Control UNED Madrid Spain

Web Laboratories (WebLabs) are essential resources for engineering education. Within this type of laboratory, a new Sharable Content Object Reference Model (SCORM) package design model is shown in this work. The proposed model is based on a set of resources that form a complete educational structure; taking into account the sequencing and navigation among the elements that compose it. In addition, it can be uploaded to a Learning Management System (LMS), offering to the students an effective tool to work with web labs. The package is structured in 4 sections or pages: Introduction, Theory, Virtual/Remote Laboratory (VRL) and Assessment; where the last performs an automated verification of the work done by the learner. In this way, one of the advantage of this methodology is that the instant results of the assessments, performed by the SCORM package, is stored in the inner LMS. Some WebLabs performing this methodology are being developed in the University of Jaén. In this work, an example is developed: "Modelling of Dynamic System: DC Motor". This WebLab is used in the Industrial Automation course that is included in several Industrial Engineering degrees.

关键词： Decision support systems Remote laboratories Least squares approximations Web design Productivity DC motors

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Remote monitoring of children with asthma, being treated in multidisciplinary hospital

Remote monitoring of children with asthma, being treated in ...

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IEEE Region 8 International Conference on Computational Technologies in Electrical and Electronics Engineering, SIBIRCON

作者： Leyla S. Namazova-Baranova Alexey I. Molodchenkov Elena A. Vishneva Elena V. Antonova Vladimir I. Smirnov Federal State Budgetary Institution “Scientific Centre of Children Health” Moscow Russia lab. Intelligent technologies and systems Federal Research Center “Computer Science and Control” of RAS Moscow Russia Dept. of standardization and clinical pharmacology Federal State Budgetary Institution “Scientific Centre of Children Health” Moscow Russia

The increase in the prevalence of allergic diseases requires the active implementation of the capabilities of modern technology in the process of providing health care for children with asthma. The paper describes the system for remote monitoring for asthma patients receiving treatment atthe Scientific Center of Children Health. We describe the method of estimating of the state of patients, the method of selection of medication therapy, the knowledge base and the rules implemented in it, interaction with the mobile application. The use of the system is necessary to improve disease control and prevention of exacerbations and improve quality of life as a sick child and his family.

关键词： Pediatrics Remote monitoring Servers Diseases Knowledge based systems

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Cyclic scheduling of multimodal concurrently flowing processes

Cyclic scheduling of multimodal concurrently flowing process...

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International Conference on Systems science, ICSS 2013

作者： Bocewicz, Grzegorz Wójcik, Robert Banaszak, Zbigniew Koszalin University of Technology Dept. of Computer Science and Management ul. Sniadeckich 2 Koszalin75-453 Poland Institute of Computer Engineering Control and Robotics Wroclaw University of Technology Wroclaw Poland Warsaw University of Technology Dept. of Business Informatics Warsaw Poland

ISBN: (纸本)9783319018560

The problem of cyclic scheduling of multimodal concurrent processes (MCPs) is considered. Processes composed of sub-sequences of local cyclic processes (LCPs) are treated as multimodal processes, e.g. in case local processes encompass the subway lines network the relevant multimodal processes can be seen as passengers traveling itineraries this network. Since LCPs network implies a MCPs behavior, the following fundamental questions arise: Does the given LCPs network guarantee an assumed cyclic schedule of the MCPs at hand? Does there exist the LCPs network such that an assumed cyclic schedule of MCPs can be achieved? In that context our contribution is to propose a declarative framework allowing one to take into account both direct and reverse problems formulation. © Springer International Publishing Switzerland 2014.

关键词： Scheduling

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MATLAB tools for the analysis of Petri net models

MATLAB tools for the analysis of Petri net models

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Jorge Júlvez Mihaela H. Matcovschi Octavian Pastravanu Dept. of Computer Science and Systems Engineering Univ. of Zaragoza Spain Dept. of Automatic Control and Applied Informatics Technical University “Gh. Asachi” of Iasi Romania

The paradigm of Petri nets offers a rich modeling power that has been successfully exploited in many different application domains as manufacturing, logistic, traffic, computer and biological domains. In order to develop and analyze Petri models in an efficient and systematic way, appropriate software tools are required. Among the existing software platforms for scientific software development, MATLAB places at the user's disposal a large set of toolboxes with an inutitive graphical interface. This paper describes some of the existing Petri net toolboxes that have been developed on MATLAB, and that cover the needs for the modeling and analysis of discrete, continuous and hybrid systems.

关键词： Computational modeling Semantics Servers Petri nets MATLAB Analytical models

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Piecewise Polynomial Policy Iterations for Synthesis of Optimal control Laws in Input-Saturated Systems

Piecewise Polynomial Policy Iterations for Synthesis of Opti...

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American control Conference

作者： Simone Baldi Giorgio Valmorbida Antonis Papachristodoulou Elias B. Kosmatopoulos Delft Center for Systems and Control Delft University of Technology Delft 2628CD The Netherlands Department of Engineering Science Control Group University of Oxford Parks Road Oxford OX1 3PJ U.K. Dept. of Electrical and Computer Engineering Democritus University of Thrace Xanthi 67100 Greece and Informatics & Telematics Institute Center for Research and Technology Hellas (ITI-CERTH) Thessaloniki 57001 Greece

ISBN: (纸本)9781479917730

This work proposes a policy iteration procedure for the synthesis of optimal and globally stabilizing control policies for Linear Time Invariant (LTI) Asymptotically Null-controllable with Bounded Inputs (ANCBI) systems. This class includes systems with eigenvalues on the imaginary axis (possibly repeated) but no pole with positive real part. The proposed policy iteration relies on a class of piecewise quadratic Lyapunov functions which is non-differentiable, but continuous, and polynomial in both the state and the deadzone functions of the input signals. The second step of the policy iteration is based on a piecewise control policy improvement. An important aspect of the proposed piecewise policy is that at each step of the iteration the computed policy is globally stabilizing and the existence of an improving value function is guaranteed as well. The solution to the inequalities which is required to hold at each step of the policy iteration, is obtained by solving Sum-of-Squares Programs (SOSP) that can be efficiently implemented with semidefinite programming (SDP) solvers.

关键词： iterative methods Policies Piecewise control law synthesis Polynomial control strategy Liapunov function Bounded

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Multiple land mines localization using a wireless sensor network

Multiple land mines localization using a wireless sensor net...

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International Conference on Information Fusion

作者： Haj Chhadé Hiba Abdallah Fahed Mougharbel Imad Gning Amadou Mihaylova Lyudmila Julier Simon University of Technology of Compiègne Compiègne France Lebanese University Beyrouth Lebanon University College London Dept. of Computer Science London UK Dept. of Automatic Control and Systems Engineering Sheffield University of Sheffield UK University College London Dept. of Computer Science London UK

This paper considers the problem of localization of multiple land mines using information collected by a network of wireless sensors deployed in the area of interest. These sensors detect the concentration of explosive vapours, emanating from buried land mines, in the air and have a wireless transmission system for exchanging information with a treatment or fusion centre. One of the key contribution of this paper is to locate and estimate the emission rate of multiple land mines. Using a model for the transport of the explosive chemicals in the air, we formulate the inverse problem consisting in determining sequentially the positions and emission rates of the land mines knowing concentration measurements provided by the sensors. To solve the inverse problem, we present a first solution based on a Least Squares optimization approach and a second solution based on probabilistic Bayesian techniques using a Markov Chain Monte Carlo sampling scheme. These two approaches are tested and compared on simulated data.

关键词： Landmine detection Sensors Inverse problems Wireless sensor networks Chemicals Vectors Explosives

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ESC-MRAC of MIMO systems for constrained robotic motion tasks in deformable environments

ESC-MRAC of MIMO systems for constrained robotic motion task...

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European control Conference (ECC)

作者： Vasiliki Koropouli Azwirman Gusrialdi Dongheui Lee Institute of Automatic Control Engineering Technische Universität München München Germany Dept. of Electrical Engineering and Computer Science University of Central Florida USA

ISBN: (纸本)9781479947287

Performance of constrained movements in multiple directions of a workspace simultaneously and in presence of uncertainty is a great challenge for robots. Achieving such tasks by employing control policies which are fully determined a priori and do not take into account the system uncertainty can cause undesired stress on the robot end-effector or the environment and result in poor performance. Instead, a sophisticated control policy is required, which can adjust to the varying conditions of a task while taking into account the coupling of motion dynamics between different directions of movement. To this aim, in this paper, we propose a MIMO Extremum Seeking control (ESC)-Model Reference Adaptive control (MRAC) approach with the view of executing fine motion tasks in presence of uncertain task dynamics. ESC enhances robustness of the system to non-parametric uncertainties compared to single MRAC. The proposed approach ensures state tracking as well as optimization of a global state-dependent cost criterion in all directions of movement. We evaluate our approach in simulations and in a real-world robotic engraving task.

关键词： MIMO Tracking Dynamics Vectors Uncertainty Adaptation models Robots

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Adding propedeuticy dependencies to the OpenAnswer Bayesian model of peer-assessment

Adding propedeuticy dependencies to the OpenAnswer Bayesian ...

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International Conference on Information Technology Based Higher Education and Training, ITHET

作者： Maria De Marsico Andrea Sterbini Marco Temperini Dept. of Computer Science Sapienza University of Roma Roma Italy Dept. of Computer Control and Management Engineering Sapienza University of Roma Roma Italy

Peer-assessment can be used to evaluate the knowledge level achieved by learners, while exposing them to a significant leaning activity at the same time. Here we see an approach to semi-automatic grading of school works. It is based on peer-assessment of answers to open ended questions (“open answers”), supported by the teacher grading activity performed on a portion of the answers. The methodology we present is based on a representation of student model and answers through Bayesian networks. It supports grading in a six-values scale (the widely used “A” to “F” scale). The experiments we present test the possibility to model the fact that knowledge required to perform some work is preparatory to that required for a subsequent one. The experiments have been conducted using the web-based system OpenAnswer and were meant to collect datasets, to be exploited in order to evaluate the various algorithms, settings and termination conditions better to be applied in order to have a reliable set of grading out of the learners' peer-assessment process and the teacher's grading work (with the latter limited to a significantly limited percentage of the answers to be graded).

关键词： Reliability Bayes methods

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ANFIS based Jacobian for a parallel manipulator mobility assistive device 10

ANFIS based Jacobian for a parallel manipulator mobility ass...

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10th UKACC International Conference on control, control 2014

作者： Asker, Ahmed Salah, Omar Fath El-Bab, Ahmed M. R. Ramadan, Ahmed A. Assal, Samy M. F. Sessa, Salvatore Abo-Ismail, Ahmed School of Innovative Design Engineering Egypt-Japan University for Science and Technology E-JUST New-Borg-El-Arab-City-Alexandria Egypt Mechanical Engineering Dept Faculty of Engineering Assiut University Assiut Egypt Dept. of Production Engineering and Mechanical Design Faculty of Engineering Tanta University Tanta Egypt Computer and Automatic Control Dept Faculty of Engineering Tanta University Tanta Egypt Graduate School of Creative Science and Engineering Waseda University Tokyo Japan

ISBN: (纸本)9781479950119

Nowadays parallel manipulators are used widely in bioengineering applications;this leads to many exciting expectations as well as challenges. The kinematic analysis of parallel manipulators with their differential kinematics yielding the Jacobian in a closed form is not a trivial task. In this paper a parallel manipulator based mobility assistive device called EJADII is analyzed to determine forward kinematics, inverse kinematics and closed-form Jacobian. An Adaptive Neuro-Fuzzy Inference System (ANFIS) is trained to estimate the Jacobian. This system would be useful when determination of the Jacobian in a closed-form is difficult to determine. The human motion during sit to stand captured by VICON experiment is used with two assisting scenarios to train and verify this system. computer simulations show relatively good results of the proposed system. © 2014 IEEE.

关键词： Inverse kinematics

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Class Specific Subspace Learning for Collaborative Representation

Class Specific Subspace Learning for Collaborative Represent...

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IEEE International Conference on Systems, Man, and Cybernetics

作者： Bao-Di Liu Bin Shen Yu-Xiong Wang Weifeng Liu Yanjiang Wang College of Information and Control Engineering China University of Petroleum Dept. of Computer Science Purdue University School of Computer Science Carnegie Mellon University

ISBN: (纸本)9781479938414

Collaborative representation based classification (CRC) has been successfully used for visual recognition and showed impressive performance recently. However, it directly uses the training samples from each class as the subspaces to calculate the minimum residual error for a given testing sample. This leads to high residual error and instability, which is critical especially for a small number of training samples in each class. In this paper, we propose a class specific subspace learning algorithm for collaborative representation. By introducing the dual form of subspace learning, it presents an explicit relationship between the basis vectors and the original image features, and thus enhances the interpretability. Lagrange multipliers are then applied to optimize the corresponding objective function, i.e., learning the weights used in constructing the subspaces. Extensive experimental results demonstrate that the proposed algorithm has achieved superior performance in several visual recognition tasks.

关键词： Databases Training Collaboration Testing Support vector machines Minimization Educational institutions

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