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XXII International Symposium on Information, Communication and Automation Technologies, ICAT

作者： Zlatan Šabić Tarik Zaimović Department for Computing and Informatics Faculty of Electrical Engineering University of Sarajevo Sarajevo Bosnia and Herzegovina Department for Management Information Technologies School of Economics and Business University of Sarajevo Sarajevo Bosnia and Herzegovina

In this paper we discuss one relatively hidden but important issue related to information systems development - weak integration of performing and managing the information systems development. Among others, two causes for such weak integration are identified as important-weak integration of methodological support to the performing and managing the development, and difficulties in knowledge transfer. We show that in practice this may have some important adverse consequences for development process, such as communication problems between engineering and managerial parts of the development team, or insisting on application of inappropriate method. In this paper we argue that the methodological integration is, rather than methodological innovation, a potential solution to this problem - both processes have traditionally quite well developed methodological support but the essential interconnection of these methods is often missing. As another potential improvement primarily intended to facilitate knowledge transfer within development team, we also suggest stronger integration of knowledge that the development process managers should possess.

关键词： Information management Management information systems Engineering management Knowledge management Knowledge transfer Technology management informatics Technological innovation Information technology Content management

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How to Securely Break into RBAC: The BTG-RBAC Model

How to Securely Break into RBAC: The BTG-RBAC Model

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Annual Computer Security Applications Conference

作者： Ana Ferreira David Chadwick Pedro Farinha Ricardo Correia Gansen Zao Rui Chilro Luis Antunes School of Computing University of Kent Canterbury UK Faculty of Medicine CINTESIS Porto Portugal School of Computer Science South China Normal University China Service of Informatics Faculty Nutrition and Food Sciences Porto Portugal Institute of Telecommunications Faculty of Science Porto Portugal

ISBN: (纸本)9781424453276

Access control models describe frameworks that dictate how subjects (e.g. users) access resources. In the role-based access control (RBAC) model access to resources is based on the role the user holds within the organization. RBAC is a rigid model where access control decisions have only two output options: grant or deny. break the glass (BTG) policies on the other hand are flexible and allow users to break or override the access controls in a controlled and justifiable manner. The main objective of this paper is to integrate BTG within the NIST/ANSI RBAC model in a transparent and secure way so that it can be adopted generically in any domain where unanticipated or emergency situations may occur. The new proposed model, called BTG-RBAC, provides a third decision option BTG, which grants authorized users permission to break the glass rather than be denied access. This can easily be implemented in any application without major changes to either the application code or the RBAC authorization infrastructure, apart from the decision engine. Finally, in order to validate the model, we discuss how the BTG-RBAC model is being introduced within a Portuguese healthcare institution where the legislation requires that genetic information must be accessed by a restricted group of healthcare professionals. These professionals, advised by the ethical committee, have required and asked for the implementation of the BTG concept in order to comply with the said legislation.

关键词： Access control Glass NIST Permission Engines Medical services Legislation Fires Computer security Application software

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Whole body interaction

Whole body interaction

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27th International Conference Extended Abstracts on Human Factors in computing Systems, CHI 2009

作者： England, David Romero, Pablo Hornecker, Eva Fergus, Paul Roast, Chris Marshall, Paul School of Computing and Maths Liverpool John Moores University Liverpool L3 3AF United Kingdom Department of Informatics University of Sussex Brighton BN1 9QJ United Kingdom Dept. of Computer and Information Science Strathclyde University Glasgow G1 1XH United Kingdom Faculty of Arts Computing Engineering and Science Sheffield Hallam University Sheffield S1 1WB United Kingdom Computing Department Open University Milton Keynes MK7 6AA United Kingdom

In this workshop we explore the notation of whole body interaction. We bring together different disciplines to create a new research direction for study of this emerging form of interaction.

ISBN: (纸本)9781605582474

In this workshop we explore the notation of whole body interaction. We bring together different disciplines to create a new research direction for study of this emerging form of interaction.

关键词： Motion capture Multi-modal Physicality Whole body interaction

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Simple adaptive dynamical control of vehicles driven by omnidirectional wheels

Simple adaptive dynamical control of vehicles driven by omni...

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IEEE 7th International Conference on Computational Cybernetics, ICCC 2009

作者： Tar, J.K. Rudas, I.J. Nagy, I. Kozlowski, K.R. Tenreiro Machado, J.A. Telematics and Communications Informatics Knowledge Centre Budapest Tech. H-1034 Budapest Hungary John Von Neumann Faculty of Informatics Budapest Tech. H-1034 Budapest Hungary Bánki Dońat Faculty of Mechanical and Safety Engineering Budapest Tech. Bécsiút 96/B H-1034 Budapest Hungary Control and Systems Engineering Computing Science and Management Poznań University of Technology Piotrowo 3a 60-965 Poznań Poland Department of Electrotechnical Engineering Institute of Engineering of Porto Rua Dr. Antonio Bernardino de Almeida 4200-072 Porto Portugal

ISBN: (纸本)9781424453115

Precise control of Automatic Guided Vehicles (AGVs) navigating between the aisles of manufacturing systems by the use of local markers is an important task. On the basis of the geometric model of the workspace and the vehicles and that of the sensor uncertainties precise trajectories were recently generated along which the vehicle safely can move. In order to achieve precise trajectory tracking the effects of the system's dynamical uncertainties (modeling errors and possible external perturbations) have to be compensated. In the present paper a simple, Fixed point transformations based adaptive control is proposed for this purpose. The proposed method is tested via simulation for a vehicle of triangular shape, driven by three omnidirectional wheels. The method is also able to monitor and evade the conditions that may lead to turning over the vehicle. ©2009IEEE.

关键词： Uncertainty analysis

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Simple adaptive dynamical control of vehicles driven by omnidirectional wheels

Simple adaptive dynamical control of vehicles driven by omni...

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International Conference on Computational Cybernetics (ICCC)

作者： J.K. Tar I.J. Rudas I. Nagy K.R. Kozłowski J.A. Tenreiro Machado Telematics and Communications Informatics Knowledge Centre Hungary John von Neumann Faculty of Informatics Hungary Bánki Donát Faculty of Mechanical & Safety Engineering Budapest University슠of슠Technology슠and슠Economics Budapest Hungary Control and Systems Engineering Computing Science & Management Poznań University of Technology Poznan Poland Department of Electrotechnical Engineering Institute Engineering of Porto Porto Portugal

Precise control of Automatic Guided Vehicles (AGVs) navigating between the aisles of manufacturing systems by the use of local markers is an important task. On the basis of the geometric model of the workspace and the vehicles and that of the sensor uncertainties precise trajectories were recently generated along which the vehicle safely can move. In order to achieve precise trajectory tracking the effects of the system's dynamical uncertainties (modeling errors and possible external perturbations) have to be compensated. In the present paper a simple, fixed point transformations based adaptive control is proposed for this purpose. The proposed method is tested via simulation for a vehicle of triangular shape, driven by three omnidirectional wheels. The method is also able to monitor and evade the conditions that may lead to turning over the vehicle.

关键词： Programmable control Adaptive control Vehicle driving Wheels Automatic control Vehicles Vehicle safety Uncertainty Control systems Navigation

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Decoupled fixed point transformation based adaptive control of the generalized 2 DOF Φ6-type Van der Pol oscillator 10

Decoupled fixed point transformation based adaptive control ...

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2009 10th European Control Conference, ECC 2009

作者： Tar, Jozsef K. Rudas, Imre J. Bito, Janos F. Machado, Jose A. Tenreiro Kozlowski, Krzysztof R. Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Tech Bécsiút 96/B BudapestH-1034 Hungary Department of Electrotechnical Engineering Institute of Engineering of Porto Rua Dr. Antonio Bernardino de Almeida Porto4200-072 Portugal Control and Systems Engineering Computing Science and Management Poznan University of Technology ul. Piotrowo 3a Poznan60-965 Poland

ISBN: (纸本)9783952417393

In this paper a possible application of a novel adaptive control approach is reported that fits to the 'traditional line of thinking' according to which in the most practical cases neither very precise, nor even complete system model is needed for obtaining precise control for dynamical systems. The validity of this statement is briefly pointed out in the most popular approaches as the main idea of the Robust Sliding Mode / Variable Structure Controllers, in Lyapunov's 2nd Method, and in a recently published problem tackling based on the simple geometric interpretation of the Singular Value Decomposition. In the present approach differential equations are deduced from iterative Cauchy sequences to realize adaptive control of a coupled nonlinear system in 'decoupled manner', using single dimensional projections of the 'acceleration space'. The paradigm on which the method is demonstrated is a 2 dimensional generalization of the originally single dimensional Φ6-type Van der Pol oscillator that is a popular paradigm of chaotic systems. Further possible generalizations of the novel method is outlined, too. © 2009 EUCA.

关键词： Chaotic systems

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Optimised Cell Formation Algorithm Considering Sequence of Operations, Alternative Routing and Part-Volume

Optimised Cell Formation Algorithm Considering Sequence of O...

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Asia International Conference on Modeling & Simulation

作者： Sani Susanto David Al-Dabass Arijit Bhattacharya Department of Industrial Engineering Faculty of Industrial Technology Parahyangan Catholic University Bandung Indonesia School of Computing & Informatics Nottingham Trent University Nottingham UK Enterprise Process Research Centre (EPRC) School of Mechanical & Manufacturing Engineering University of Dublin Dublin Ireland

ISBN: (纸本)9781424441549

A novel cell formation algorithm has been introduced in this paper. The motivation of the research is the lack of attention in important information, e.g., production demand (or part-volume), in the most of the cell formation techniques. For example, one of the crucial steps in the design of a cellular manufacturing system is the cell formation problem, which involves grouping the parts into part families and machines into machine groups. It has been found that 80% of the cell formation problems consider only 0-1 (binary) machine-part incidence matrix that ignores the sequence of operations in manufacturing parts. Further, literature reveals that only a few studies consider alternative routing. In order to cope with this situation a new cell formation algorithm, considering the factors sequence of operation, alternative routing and part-volume, is introduced.

关键词： Routing Production Group technology Cellular manufacturing Clustering algorithms Genetic algorithms Solid modeling Manufacturing processes Virtual manufacturing Manufacturing systems

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Time-domain correlation imaging and its applications

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IEEJ Transactions on Sensors and Micromachines 2009年第5期129卷 129-137页

作者： Ando, Shigeru Kimach, Akira Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan Department of Engineering Informatics Faculty of Information and Communication Engineering Osaka Electro-Communication University 18-8 Hatsu-cho Neyagawa Osaka 572-8530 Japan

This article presents a novel framework of image sensing based on the time-domain correlation image sensor. The correlation detection mechanism of the sensor realizes pixel-parallel, selective detection of wideband modulated optical patterns at an ordinary frame rate, which cannot be achieved by conventional image sensors. This remarkable feature allows a variety of real-time imaging applications that employ powerful techniques of correlation detection. © 2009 The Institute of Electrical Engineers of Japan.

关键词： Optical correlation

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Arithmetic for the unification of quantum mechanics and general relativity

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Journal of Physics: Conference Series 2009年第1期174卷

作者： Victor Korotkikh School of Computing Sciences Faculty of Business and Informatics Central Queensland University Mackay Queensland 4740 Australia

In the paper we bring attention to description of complex systems in terms of self-organization processes of prime integer relations. Revealed through the unity of two equivalent forms, arithmetical and geometrical, the description may have the potential for the unification of quantum mechanics and general relativity. Remarkably, based on integers and controlled by arithmetic only such processes can define nonlocal correlations between parts of a complex system and the geometry of their spacetimes.

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Exploration of Soft computing Models for the Valuation of Residential Premises Using the KEEL Tool

Exploration of Soft Computing Models for the Valuation of Re...

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Asian Conference on Intelligent Information and Database Systems, ACIIDS

作者： Tadeusz Lasota Ewa Pronobis Bogdan Trawinski Krzysztof Trawinski Department of Rural Landscape Planning and Development Wrocław University of Environmental and Life Science Wroclaw Poland Faculty of Computer Science and Management Wrocław University of Technology Wroclaw Poland Institute of Informatics Wrocław University of Technology Wroclaw Poland European Centre for Soft Computing Micros Mieres Asturias Spain

The experiments aimed to compare data driven soft computing models for the valuation of residential premises were conducted using the KEEL tool (knowledge extraction based on evolutionary learning). Twelve regression algorithms were applied to actual data sets derived from the cadastral system and the registry of real estate transactions. The 5times2-fold cross validation and nonparametric statistical tests were applied. The results proved the usefulness of the tool to carry out laborious investigation in a relatively short time. Further research is needed to determine to what extent data coming from such sources allow to build the real estate valuation models.

关键词： Cost accounting Appraisal Mathematical model Data mining Marketing and sales Cities and towns Buildings Geographic Information Systems Fuzzy systems Input variables

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