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IEEE Electrical Insulation conference

作者： N. Meftali S. Bouazabia Department of electrical engineering Laboratory of Electrical and Industrial Systems Algiers Algeria

ISBN: (纸本)9781467347389

This paper proposes a numerical model describing the transient behaviour of dielectric liquid of one-carrier pulsed injection. The main objective is the establishment of the mathematical model and presentation of the methods of its resolution to study the transient evolution of the potential, the charge density, the current density and the charges speed under DC high voltage. The model is based on Poisson's equation, transport and continuity equation. The resolution of this system is done with numerical methods namely finite differences and Euler methods. The results bring a good description of the transient charges transport for one-carrier pulsed injection under a DC high voltage.

关键词： one-carrier injection dielectric charge density conduction

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Application of Self-Adaptive Techniques to Federated Authorization Models

Application of Self-Adaptive Techniques to Federated Authori...

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34th International conference on Software engineering (ICSE)

作者： Bailey, Christopher Univ Kent Sch Comp Canterbury Kent England

ISBN: (纸本)9781467310673

Authorization infrastructures are an integral part of any network where resources need to be protected. As organisations start to federate access to their resources, authorization infrastructures become increasingly difficult to manage, to a point where relying only on human resources becomes unfeasible. In our work, we propose a Self-Adaptive Authorization Framework (SAAF) that is capable of monitoring the usage of resources, and controlling access to resources through the manipulation of authorization assets (e.g., authorization policies, access rights and sessions), due to the identification of abnormal usage. As part of this work, we explore the use of models for facilitating the autonomic management of federated authorization infrastructures by 1) classifying access behaviour exhibited by users, 2) modelling authorization assets, including usage, for identifying abnormal behaviour, and 3) managing authorization through the adaptation and reflection of modelled authorization assets. SAAF will be evaluated by integrating it into an existing authorization infrastructure that would allow the simulation of abnormal usage scenarios.

关键词： self-adaptation model driven engineering model transformation authorization computing security

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Crash prediction system for mobile device on android by using data stream minning techniques

Crash prediction system for mobile device on android by usin...

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6th Asia International conference on mathematical modelling and Computer Simulation, AMS 2012

作者： Singh, Garima R. Dongre, Snehlata S. Computer Science and Engineering G. H. Raisoni College of Engineering Nagpur India

ISBN: (纸本)9780769547305

As an accident is very common scenario for today's world. This paper presents one more step towards safety of driving through an application called Crash Prediction System (CPS). That analyzes driver's behaviour in real time and predicts that whether driver is suitable or not for driving. This system requires various profile of driver's detail for accurate prediction and gives result like Fit, Unfit and Partially Fit. For this application a concept of Data Stream minning is used with Principle Component Analysis (PCA) and Hidden Markov Model (HMM) techniques. Other interactive feature for this application is that, it used for mobile device. A large range of application is running on mobile device which are facing problem like a memory, computational capability, battery and many more. For eliminating all these issues there is a platform known as Android which we used for this application. Experiment result of CPS on Google Android platform is presented, proving the effectiveness of the proposed system. © 2012 IEEE.

关键词： Hidden Markov models

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mathematical modelling and parameter optimization of a 2-DOF fish robot

Mathematical modelling and parameter optimization of a 2-DOF...

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2012 19th International conference on Mechatronics and Machine Vision in Practice, M2VIP 2012

作者： Masoomi, Sayyed Farideddin Gutschmidt, Stefanie Xiaoqi Chen Sellier, Mathieu Mechatronics Laboratory Mechanical Engineering Department University of Canterbury New Zealand Mechanical Engineering Department University of Canterbury New Zealand

ISBN: (纸本)9780473204853

Considering high efficiency of fish robots, their development to accomplish marine tasks is indispensible. In order to do that initially the robot needs to be mathematically modeled and simulated with respect to its mechanical design. For simulation, the parameters of the mathematical model require optimization. In this paper, a fish robot with two degrees of freedom (DOF) is introduced. After that, the dynamic equations of motion of the robot are presented and discussed. To simulate the robot, the constant parameters of the equations are optimized using Particle Swarm Optimization (PSO) algorithm. Finally, applying both optimized and non-optimized parameters in the simulation, the effect of each parameter on the behaviour of the robot is observed and analyzed. © 2012 AUT University.

关键词： Robots

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Energy efficient living - INTEWON: From measuring to modelling to managing

Energy efficient living - INTEWON: From measuring to modelli...

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7th Windsor conference: The Changing Context of Comfort in an Unpredictable World 2012

作者： Kingma, Boris Jacquot, Christel Van Der Aa, Ad Steg, Linda Frijns, Arjan De Haas, Frans Van Marken Lichtenbelt, Wouter NUTRIM School for Nutrition Department of Human Biology Maastricht University Medical Center United States Cauberg-Huygen Raadgevende Ingenieurs B.V. Netherlands Department of Psychology University of Groningen Netherlands Department of Mechanical Engineering Section Energy Technology Eindhoven University of Technology Netherlands De Haas and Partners Netherlands

In 2011, a Dutch multidisciplinary project was launched entitled "Individual-oriented information technology for energy efficient living" (INTEWON). It is a four-year study aimed at gaining more insight into the factors that determine the actual energy consumption of a household. It is a co-operation between the Maastricht University (physiology and knowledge engineering), Groningen University (human energy saving behaviour), Cauberg-Huygen engineering agency (energy calculations), and the University of Technology Eindhoven (energy technology and build environment). The purpose of the study is to obtain insight into the interaction between the individual comfort, the resulting behaviour and the techniques that enable energy efficient behaviour. It is a study in which technical, physiological and social research work together. The experiments are currently being conducted and here we report pilot data on the interaction between thermal physiology and thermal behaviour. In part I, experiments are described that are carried out in a specially designed indoor climate facilities at Maastricht University. In the laboratory the environmental conditions can be accurately prescribed whilst continuously monitoring behaviour and physiological parameters such as energy expenditure and skin temperature. In part II a novel numerical model for prediction of thermal behaviour using a Bayesian approach is described.

关键词： Thermal comfort

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modelling of Crowd behaviour in Emergency Evacuation

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2nd International conference on Civil engineering, Architecture and Building Materials (CEABM 2012)

作者： Liu Junfeng Yuan Weifeng Dalian Maritime Univ Dalian 116026 Peoples R China Southwest Univ Sci & Technol Mianyang 621010 Peoples R China

ISBN: (纸本)9783037854211

A numerical model based on cellular automaton is proposed to simulate the human behaviour termed 'flow with the stream' in emergency evacuation from a large smoke-filled compartment. In the model, smoke effect in the context of visibility is considered since visibility range can affect crowd behaviour significantly. To simulate the reality that the smoke concentration in a fire compartment is not constant, the proposed model is developed to deal with the scenario in which the visibility range varies in the course of time. An empirical formula is incorporated into the proposed model to estimate the visibility range. The results of numerical tests show that the proposed model can also be used to investigate the effect of the number of guiders through case study.

关键词： Cellular automaton Evacuation modeling Crowd behaviour

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Automatic mood classification model for Indian popular music

Automatic mood classification model for Indian popular music

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6th Asia International conference on mathematical modelling and Computer Simulation, AMS 2012

作者： Ujlambkar, Aniruddha M. Attar, Vahida Z. Department of Computer Engineering and I.T. College of Engineering Pune Pune India

ISBN: (纸本)9780769547305

Music shares a very special relation with human emotions. We often choose to listen to a song or music which best fits our mood at that instant. A lot of research and study has been going on in the field of Music mood recognition in the recent years. We contribute to make an effort for automatic identification of mood underlying the audio songs by mining their spectral and temporal audio features. Our current work involves analysis of various classification algorithms in order to learn, train and test the model representing the moods of the audio songs. The focus is on the Indian popular music pieces and our work continues to analyze, develop and improve the algorithms to produce a system to recognize the mood category of the audio files automatically. The experimental results show a satisfactory performance of the system in recognizing the music mood by using ensemble classification tree techniques. © 2012 IEEE.

关键词： Data mining

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Describing human Emotions Through mathematical modelling

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IFAC Proceedings Volumes 2012年第2期45卷 463-468页

作者： Kim Hartmann Ingo Siegert Stefan Glüge Andreas Wendemuth Michael Kotzyba Barbara Deml Faculty of Electrical Engineering and Information Technology Institute for Electronics Signal Processing and Communications Otto-von-Guericke-University 39106 Magdeburg Germany Faculty of Mechanical Engineering Institute of Ergonomics Manufacturing Systems and Automation Otto-von-Guericke-University 39106 Magdeburg Germany

Abstract To design a companion technology we focus on the appraisal theory model to predict emotions and determine the appropriate system behaviour to support human-Computer-Interaction. Until now, the implementation of emotion processing was hindered by the fact that the theories needed originate from diverging research areas, hence divergent research techniques and result representations are present. Since this difficulty arises repeatedly in interdisciplinary research, we investigated the use of mathematical modelling as an unifying language to translate the coherence of appraisal theory. We found that the mathematical category theory supports the modelling of human emotions according to the appraisal theory model and hence assists the implementation.

关键词： human-Computer-Interaction mathematical modelling Appraisal Theory Category Theory Emotion prediction User modelling

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Integrating Non-Monotonic Reasoning into High Level Component-Based modelling Using Behavior Trees

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11th International conference on Intelligent Software Methodologies, Tools, and Techniques (SoMeT)

作者： Chan, Lin Wah Hexel, Rene Wen, Lian Griffith Univ Sch Informat & Commun Technol Brisbane Qld 4111 Australia

ISBN: (纸本)9781614991250;9781614991243

In this paper we investigate how combining two types of modelling languages will increase their expressive power. The Behavior Tree method and non-monotonic logic will be integrated. As a general purpose high level graphical modelling language, the Behavior Tree (BT) method has the advantage of being easy to learn and has been successfully used to model industrial large-scale software intensive systems. Its strength is modelling high level business requirements. The BT method is not good at modelling complex logic. Non-monotonic reasoning represents logic in a human intuitive way. We propose that the logical representation in BTs be replaced with non-monotonic reasoning. We implement the integration using BECIE (Behavior engineering Component Integration Environment) and Clausal Defeasible Logic. We finish two executable case studies to validate the approach and the implementation. The case studies show how the expressive power of non-monotonic logic assists the formal representation of functional requirements in the BT method. The result is an effective mechanism for formally specifying and simulating logical requirements in BTs. Our approach allows users of BTs to declare what they want in human readable rules instead of composing complex behaviour to represent how their rules are achieved. This raises the level of abstraction regarding logic representation in BTs. It hides low-level logics from high level components, enabling stakeholders of the system to easily conceptualise the main flow. Additionally, it separates rules from procedural flows. The separation of the two concerns increases the flexibility of both procedural flows and rules, as well as the reusability of rules.

关键词： modelling Non-monotonic reasoning Clausal Defeasible Logic Behavior engineering Behavior Tree BECIE

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Characterization of the automotive seat/human structural dynamics

Characterization of the automotive seat/human structural dyn...

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International conference on Noise and Vibration engineering (ISMA) / International conference on Uncertainty in Structural Dynamics (USD)

作者： Lo, L. Fard, M. Subic, A. Jazar, R. RMIT Univ Melbourne Sch Aerosp Mech & Mfg Engn Melbourne Vic Australia

ISBN: (纸本)9789073802896

Predicting the responses of the combined human body-seat structure to vibration excitation is still a challenging task. This is mainly due to the complex dynamics behaviour of the seated human body in response to the vibration. Nevertheless, several applications, such as optimizing the vehicle seat structure or reducing the transmission of the vibration to the seat occupant, do not necessarily require complex modelling of the human body. It is however essential to characterize and predict the critical frequencies and the corresponding vibration patterns of the combined seat with human occupant. This study aims to predict the resonant frequencies and corresponding vibration mode shapes of the vehicle seat with occupant from the unoccupied seat. An experiment is designed to measure the frequency responses, resonant frequencies, and corresponding mode shapes of a selected vehicle seat when mounted on the test rig. Seventeen young male volunteers have participated in the experiments. The results indicate that that the vehicle unoccupied seat have three similar main seatback lateral, seatback fore-aft, and seat twisting resonant frequencies below 80 Hz. Adding the human occupant to the seat gave the same three seatback lateral, seatback fore-aft, and seat twisting mode shapes but with different resonant frequencies from their corresponding unoccupied seat. The changes of the resonant frequencies from unoccupied seat to the occupied seat for the all seventeen volunteers were consistent in accordance to their weights. Seated human occupant is not adding any new resonant frequency or mode shapes to the seat. Similar changes of the resonant frequencies between the six volunteers for the three different seats allow us to predict the key attributes of the seat with occupant (occupied seat) modes from their corresponding unoccupied seat. Results from this study are expected to reduce the need for complex modeling of the human body in upfront analysis in design of vehicle seats.

关键词： Natural frequencies

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