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

作者： Mircea Hulea Faculty of Automatic Control and Computer Engineering Gheorghe Asachi Technical University of Iasi Romania

The spike-timing-dependent-plasticity (STDP) is a mechanism for adjusting the efficacies of biological synapses that was observed and studied in vitro. However, the STDP effect for natural neurons in vivo is subject of debate because in several experiments when the neurons are stimulated indirectly by natural paths the STDP effect was insignificant. Starting from these aspects this work studies by simulation the STDP long-term effect on synaptic plasticity in order to determine whether the long-term potentiation (LTP) and the long-term depression (LTD) could compensate each other during long-term activity of the neural network. The results show that for some synapses the weights start to oscillate in small intervals around long term stable values that are different from the limits of the weights variation interval. This behavior is caused by the fact that, indeed, the effects of LTP and LTD compensate each other at certain weight values when the same pattern of the input stimuli is presented repeatedly to the network input. The LTP and LTD compensation that determines long term weights stability to other values than the weight variation limits could improve the sensitivity of the learning process in the biological networks because no neuron specific limitation is introduced.

关键词： Neurons Biological system modeling Biological neural networks Computational modeling Brain modeling Biomembranes

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Using spin images for hand gesture recognition in 3D point clouds

Using spin images for hand gesture recognition in 3D point c...

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

作者： Bogdan Apostol Constantina Raluca Mihalache Vasile Manta Faculty of Automatic Control and Computer Engineering Technical University “Gheorghe Asachi” Iasi Romania

Depth information from a captured scene can provide a more complete description of objects which can be exploited for recognition purposes. In this paper we propose a new approach to static hand gesture recognition that explores only depth information acquired with a Microsoft Kinect camera. Firstly, the regions of interest are extracted from depth data and a 3D point cloud is created taking into consideration the capture device settings. Then, for each 3D point in the simplified point cloud the local spin image descriptor is computed. The performance of hand pose detection greatly depends on the 3D shape descriptor used. KPCA is used for dimensionality reduction and for noise elimination from obtained spin image histograms. The most relevant features in terms of principal components are served as input for a SVM classifier. Experimental results show a high level of accuracy in recognizing static hand gestures using spin images in 3D point clouds.

关键词： Three-dimensional displays Support vector machines Kernel Feature extraction Histograms Training Vectors

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Introducing aceMote: An energy efficient 32 bit mote

Introducing aceMote: An energy efficient 32 bit mote

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International Conference on Development and Application Systems

作者： Andrei Stan Nicolae Botezatu Faculty of Automatic Control and Computer Engineering Technical University “Gheorghe Asachi” Iasi Romania

Wireless sensors networks is an active research topic. The sensor nodes (i.e. motes) are the main building blocks of these networks. There is a permanent concern for building more and more efficient motes in order to satisfy the demanding specifications of a sensor network. This paper introduces a new mote device: aceMOTE which is based on a 32 bit microcontroller. The hardware structure of the mote is presented and a comparison is made with similar popular devices. An experimental analysis is made regarding the energy consumption and the results prove that a 32 bit microcontroller is a viable choice for usage in mote design compared with the more frequently used 8 bit and 16 bit microcontrollers.

关键词： Microcontrollers Wireless sensor networks computer architecture Power demand Optimized production technology Hardware Energy consumption

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Adaptive observer for nonlinear fractional-order systems

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International Journal of Adaptive control and Signal Processing 2016年第3期31卷

作者： Ibrahima N'doye Taous-Meriem Laleg-Kirati Mohamed Darouach Holger Voos Computer Electrical and Mathematical Sciences and Engineering Division (CEMSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia Research Center for Automatic Control of Nancy (CRAN UMR 7039 CNRS) University of Lorraine IUT de Longwy 186 rue de Lorraine 54400 Cosnes et Romain France Faculty of Science Technology and Communication (FSTC) University of Luxembourg 6 rue Richard Coudenhove-Kalergi L-1359 Luxembourg

In this paper, an adaptive observer is proposed for the joint estimation of states and parameters of a fractional nonlinear system with external perturbations. The convergence of the proposed observer is derived in terms of linear matrix inequalities (LMIs) by using an indirect Lyapunov *** proposed adaptive observer is also robust against Lipschitz additive nonlinear uncertainty. The performance of the observer is illustrated through some examples including the chaotic Lorenz and Lü's systems. Copyright © 2016 John Wiley & Sons, Ltd.

关键词： adaptive observer design fractional-order nonlinear system indirect Lyapunov approach linear matrix inequality (LMI) chaotic Lorenz system chaotic Lü's system

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Educational Innovation: Interaction and Relationship Inside A Sub-Module

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Procedia - Social and Behavioral Sciences 2015年 186卷 395-400页

作者： Fernando Oterino-Echavarri Jose Manuel Lopez-Guede Ekaitz Zulueta Manuel Graña Department of Electronics University College of Engineering of Vitoria Basque Country University (UPV/EHU) C/Nieves Cano 12 01006 Vitoria-Gasteiz Spain Department of Systems Engineering and Automatic Control University College of Engineering of Vitoria Basque Country University (UPV/EHU) C/Nieves Cano 12 01006 Vitoria-Gasteiz Spain Computational Intelligence Group Basque Country University (UPV/EHU) Department of Computer Science and Artificial Intelligence Faculty of Informatics Basque Country University (UPV/EHU) Paseo Manuel de Lardizabal 1 20018 Donostia-San Sebastián Spain

In this paper authors will expose a work developed with the aim to submit an educational innovation project proposal to a competitive call for Educational Innovation Projects 2013-2015 of the Education Advisory Service of the Basque Country University (UPV/EHU, Spain). This project is being carried out in the computer Structure and computer Architecture sub-module of the Degree in computer Management and Information Systems engineering of the University College of engineering of Vitoria-Gasteiz, University of the Basque Country (UPV/EHU). The project is based on the active learning, more specifically, on cooperative learning. In this paper we have given deeper insight the dependencies between all the subjects belonging to the analyzed sub-module, which is composed of two subjects named computer Structure and computer Architecture. We have included in such analysis a previous subject named Principles of Digital Systems Design, which does not belong to that sub-module, but plays an important role in the acquisition of the knowledge and competencies of the two previously referenced subjects.

关键词： Active Learning Cooperative Learning computer engineering computer Structure computer Architecture

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Generalized media access control algorithms for embedded network systems

Generalized media access control algorithms for embedded net...

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

作者： Mihai Postolache Faculty of Automatic Control and Computer Engineering “Gheorghe Asachi” Technical University of Iasi Iasi Romania

Embedded network systems use serial communication protocols and simplified media access control schemes in order to exchange information among several interconnected nodes. Within this paper a generalization of the classical media access control (MAC) protocols used in small embedded serial networks of microcontrollers is investigated and an implementation platform for testing the proposed MAC schemes is described. Thus, the classic master-slave and token-bus protocols turn out to be just two particular cases of the proposed generalized media access control (GMAC) algorithms: a centralized and a distributed one, respectively. By applying these generalized algorithms in practice, significant increase in data throughput is obtained, as it resulted from the simulation tests and then by practical implementation on a typical embedded network of microcontrollers.

关键词： Media Access Protocol Media Master-slave Monitoring Embedded systems Communication channels

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Remote administration of hardware resources using TCP/IP protocol and WEB technologies

Remote administration of hardware resources using TCP/IP pro...

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International Conference and Exposition on Electrical and Power engineering (EPE)

作者： Catalin Damian Eduard Lunca Mircea Ilinca Faculty of Electrical Engineering Technical University of Iasi Romania Faculty of Automatic Control and Computer Engineering Technical University of Iasi Romania

This paper presents a combination of programming languages and web technologies used to deploy a modern remote controlled system. The hardware part of the system is a parallel port interface board that contains different types display devices, user-input components and some relays. The system functionality is based on some software applications developed using different techniques: the communication between the parallel interface, local computer and webserver PC is based on standard C, the user interface is developed using php, mysql, html and javascript technologies. Users can access full resources of the system if they are registered or only some demonstration and training sections as guest users.

关键词： Hardware IP networks computers Databases Ports (computers) Software Servers

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Implementation of software changes in programming techniques learning

Implementation of software changes in programming techniques...

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International Conference and Exposition on Electrical and Power engineering (EPE)

作者： Catalin Damian Mircea Ilinca Faculty of Electrical Engineering Technical University of Iasi Romania Faculty of Automatic Control and Computer Engineering Technical University of Iasi Romania

This paper presents a study about how efficient implementation of software changes helps students to better understanding of programming techniques and algorithms. The study is performed during last three years on first year students, considering applications classes for two first year courses: computer programming part I and part II. There are taken into account some partial results during the semester, final exams and also some questionnaires accomplished by students. The ratings for this study are imported from a database. The study is regarding around eight hundred students.

关键词： Education Programming profession Mathematical model Encoding computer languages Software

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Artificial intelligence modelling methodologies applied to a polymerization process

Artificial intelligence modelling methodologies applied to a...

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International Conference on Simulation and Modeling Methodologies, Technologies and Applications (SIMULTECH)

作者： Silvia Curteanu Elena-Niculina Dragoi Florin Leon Cristina Butnariu Faculty of Chemical Engineering and Environmental Protection “Gheorghe Asachi” Technical University of Iasi Iasi Romania Faculty of Automatic Control and Computer Engineering Bucharest Romania

A series of modelling methodologies based on artificial intelligence tools are applied to solve a complex real-world problem. Neural networks and support vector machines are used as models and differential evolution and clonal selection algorithms as optimizers for structural and parametric optimization of the models. The goal is to make a comparative analysis of these methods for the case study of the free radical polymerization of styrene, a complex, difficult to model process, where the monomer conversion and molecular masses are predicted as a function of reaction conditions, i.e. temperature, amount of initiator and time. Four modelling methodologies are developed and evaluated in terms of accuracy.

关键词： Support vector machines Kernel Computational modeling Testing Polymers Manganese Optimization

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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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