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International Conference on Information technology (ICIT)

作者： Satchidananda Dehuri Ashish Ghosh Rajib Mall P.G. Department of Information and Communication Technology Fakir Mohan University Balasore India Machine Intelligence Unit and Center for Soft computing Research Indian Statistical Institute Kolkata India Department of Computer Science and Engineering Indian Institute of Technology Kharagpur Kharagpur India

This paper proposes a novel particle swarm optimisation (PSO) algorithm using the concept of age of particles. Effective fitness of a particle depends both on its functional value and age. Age of a newly generated particle is taken as zero, and in every iteration age of each individual is increased by one. In this paper, a trapezoidal aging function is considered. The model aims to emulate natural swarm system in a more natural way. The effectiveness of this concept is demonstrated by cluster analysis. Results show that the model provides enhanced performance and maintains more diversity in the swarm and thereby allows the particles to be robust to trace the changing environment.

关键词： Particle swarm optimization Aging Equations Birds Clustering algorithms Machine learning algorithms Communications technology Machine intelligence computer science Robustness

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An Admittance Control Scheme for a Robotic Upper- Limb Stroke Rehabilitation System

An Admittance Control Scheme for a Robotic Upper- Limb Strok...

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Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： P. Culmer A. Jackson M.C. Levesley J. Savage R. Richardson J.A. Cozens B.B. Bhakta Department of Mechanical Engineering University of Leeds Leeds UK Leeds West Primary Care Trust Saint Mary's Hospital Leeds UK Department of Computer Science & Engineering University of Manchester Institute of Science and Technology UK Department of Rehabilitation Medicine NHS Grampian Aberdeen UK Academic Unit of Musculoskeletal and Rehabilitation Medicine Faculty of Medicine and Health University of Leeds UK

This paper presents a control scheme for a dual robot upper-limb stroke rehabilitation system. A model of the human arm is outlined and used to formulate an admittance controller operating in human upper-limb joint sp... 详细信息

关键词： Admittance Control systems Rehabilitation robotics Medical control systems Biological control systems Medical robotics Biomedical engineering

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Enhancing mobile agent communication performance

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International Journal of computers and Applications 2005年第2期27卷 45-49页

作者： Hamza, M.A. Awad, I.F. Awad, G.M.B. Arab Academy for Science and Technology Maritime Transport P.O. Box 1029 Miami Alexandria Egypt Internet and eBusiness Unit in the Academy Egypt Computer Science Department College of Computing and Information Technology Arab Academy for Science and Technology Egypt Computer Engineering Department College of Engineering Arab Academy for Science and Technology Egypt

The recent evolution of distributed systems has favoured the development of a new generation of mobile agents based applications. In fact, many agent systems have been created in the last few years, and there are currently various efforts to standardize them. However, some problems are still under research, including mechanisms for agent security, control structures, transactional support, and design of communication models. Previous research has shown that better communication performance model can be achieved by mixing remote procedure calls with agent migration. In this article we propose an algorithm to provide the agent with a path with minimal communication cost for some special network topologies.

关键词： Multi agent systems

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Risk factors in the collaborative development of management information systems for Nigerian universities†

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Information technology for Development 2006年第2期12卷

作者： Charles O. Uwadia Princely E. Ifinedo Goodluck M. Nwamarah Emmanuel G. Eseyin Akin Sawyerr Department of Computer Sciences University of Lagos Lagos Nigeria Department of Computer Science and Information Systems University of Jyväskylä Finland Management Information System (MIS) Unit University of Nigeria Nsukka Nigeria Computer Centre University of Jos Jos Nigeria Planning and Information Technology Nigerian Investment Promotion Commission Garki Abuja Nigeria

The authors discuss the risk factors associated with the collaborative development of information systems (IS) within the university environment in Nigeria. They use observations and reviews of relevant reports of the project as well as a variation of the Delphi Study in presenting their findings. The study shows that risks were associated with funding, top administrators' commitment, the number of participating universities, the role of the donor, as well as other factors. In addition, the challenges posed by each risk factor and the lessons learned are presented. Primarily, the study reports the scenario of IS development by universities in a developing economy in which the development process is characterized by collaboration. Opportunities for future research on the issue are also outlined. © 2006 Wiley Periodicals, Inc.

关键词： management information systems risk factors collaborative development

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Data mining as a technique for knowledge management in business process redesign

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Information Management and computer Security 2005年第4期13卷 274-280页

作者： Folorunso, O. Ogunde, A.O. Department of Mathematical Sciences University of Agriculture Abeokuta Ogun State Nigeria Computer Science Unit Federal College of Freshwater Fisheries Technology New Bussa Niger State Nigeria

Purpose - Business process redesign (BPR) is undertaken to achieve order-of-magnitude improvements over "old" forms of the organization. Practitioners in academia and the business world have developed a number of methodologies to support this competitive restructuring that forms the current focus of concern, many of which have not been successful. The purpose of this paper is to suggest the use of data mining (DM) as a technique to support the process of redesigning a business by extracting the much needed knowledge hidden in large volumes of data maintained by the organization through the DM models. Design/methodology/approach - The paper explains how the DM/BPR tool will extract and transfer the much-needed knowledge necessary for implementing the new business. Findings - The process of extracting knowledge hidden from large volumes of data (DM) has proved very successful in solving many business or scientific problems to achieve competitive advantage. As suggested in the DM/BPR framework, the DM model can be deployed on the massive data collected from past business processes of the organization which then yields the previously unknown knowledge and trends needed by top managers or decision makers in the organization for effective business process redesigning. Originality/value - The proposed DM/BPR framework transforms the old business into a new prospect-oriented business organization by carefully re-engineering the old system incorporating the new discovered knowledge which helps the manager to make wise and informed business decisions in the area of accountability, business change management expertise, business process analysis, business model design, business model implementation and others. © Emerald Group Publishing Limited.

关键词： Data mining

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Isothetic polygonal approximations of a 2D object on generalized grid

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1st International Conference on Pattern Recognition and Machine Intelligence, PReMI 2005

作者： Bhowmick, Partha Biswas, Arindam Bhattacharya, Bhargab B. Computer Science and Technology Department Bengal Engineering and Science University Shibpur Howrah India Advanced Computing and Microelectronics Unit Indian Statistical Institute Kolkata India

ISBN: (纸本)3540305068

Determination of an isothetic polygonal approximation of the outer or inner contour of an object is a challenging problem with numerous applications to pattern recognition and image processing. In this paper, a novel algorithm is presented for constructing the outer (or inner) tight isothetic polygon(s) containing (or filling) an arbitrarily shaped 2D object on a background grid, using a classical labeling technique, The background grid may consist of uniformly or non-uniformly spaced horizontal and vertical lines. Experimental results for both uniform and non-uniform grids of varying sizes have been reported to demonstrate the applicability and efficiency of the proposed algorithm. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Object recognition

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Modeling in cardiopulmonary resuscitation: Pumping the heart

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Cardiovascular Engineering 2005年第3期5卷 105-118页

作者： Noordergraaf, Gerrit J. Dijkema, Tammo J. Kortsmit, Wil J.P.M. Schilders, Wil H.A. Scheffer, Gert J. Noordergraaf, Abraham Department of Anesthesia and Resuscitation St. Elisabeth Hospital Tilburg 5022 GC Tilburg Hilvarenbeekseweg 60 Netherlands Department of Mathematics and Computer Science Utrecht University Utrecht Netherlands Department of Mathematics and Computer Science Eindhoven University of Technology Eindhoven Netherlands Department of Anesthesiology University Medical Center Nijmegen Nijmegen Netherlands Cardiovascular Studies Unit University of Pennsylvania Philadelphia PA United States

Physiology offers insights into fundamental aspects of the circulation, even when the circulation is nonphysiological, as during cardiac arrest and cardiopulmonary resuscitation (CPR). Human and animal experiments offer only limited insights as they are susceptible to uncontrollable variables. Mathematical models offer quantitative results for flows, pressures and volumes under clearly defined conditions, chosen by the experimenters. This report describes the left ventricle and its immediate environment as the core of a larger mathematical model. The model works normally under physiological conditions, and is specifically designed to allow understanding of flow, pressure, and volume phenomena under CPR as an extreme pathophysiological scenario. Using impedance-defined flow, the importance of valves for both the contracting as well as the asystolic ventricle is quantified. It demonstrates the role of venous pressure, sloshing of blood and flow around the cardiovascular circuit. The flow of 8 mL/s, in a pathological situation is demonstrated to be due not to cardiac compression, but to venous pressure. The principal conclusions are that the model functions in the physiological situation and that in an asystolic left ventricle with competent valves, intrathoracic pressure can modestly replace contractile properties. In an asystolic ventricle without competent valves, intrathoracic pressure variations accomplish little. The cardiac pump theory in CPR has limited applicability. © Springer science + Business Media, Inc. 2005.

关键词： Cardiopulmonary resuscitation (CPR) Circulation Modeling Pathophysiology Physiology

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Biologically inspired embodied evolution of survival

Biologically inspired embodied evolution of survival

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Congress on Evolutionary Computation

作者： S. Elfwing E. Uchibe K. Doya H.I. Christensen Centre for Autonomous Systems Numerical Analysis and Computer Science Royal Institute of Technology Stockholm Sweden Neural Computation Unit Okinawa Institute of Science and Technology Uruma Okinawa Japan

Embodied evolution is a methodology for evolutionary robotics that mimics the distributed, asynchronous and autonomous properties of biological evolution. The evaluation, selection and reproduction are carried out by and between the robots, without any need for human intervention. In this paper, we propose a biologically inspired embodied evolution framework, which fully integrates self-preservation, recharging from external batteries in the environment, and self-reproduction, pair-wise exchange of genetic material, into a survival system. The individuals are explicitly evaluated for the performance of the battery capturing task, but also implicitly for the mating task by the fact that an individual that mates frequently has larger probability to spread its gene in the population. We have evaluated our method in simulation experiments and the simulation results show that the solutions obtained by our embodied evolution method were able to optimize the two survival tasks, battery capturing and mating, simultaneously. We have also performed preliminary experiments in hardware, with promising results.

关键词： Evolution (biology) Batteries Genetics Erbium Biological materials Robot vision systems Humans Robotics and automation Numerical analysis computer science

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Assignment marking via online self assess

Assignment marking via online self assess

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11th Australasian World Wide Web Conference, AusWeb 2005

作者： Schuhmacher, Margot Redpath, Robert Lecturer Higher Education Development Unit Centre for Learning and Teaching Support Monash University Clayton Campus Victoria 3800 Australia Lecturer School of Computer Science and Software Engineering Faculty of Information Technology Monash University Caulfield Campus Victoria 3174 Australia

This paper explores the use of online self assessment as a tool for guiding the assignment marking process. The study was motivated by a desire to assist staff in more efficiently completing assessment and to involve the students in the assessment process. Subsequently, the study evolved to overcome a deficit, being the failure to allow for automation of the inclusion of marking criteria in the assignment tool, in the Learning Management System. Consequent creation of the assignment marking guide in the form of an online quiz enabled students to perform self assessment after their assignment submission. Evaluation of the process indicates student self assessment contributed to their learning, providing them with relatively immediate feedback. Additional benefits include an improved assessment process for staff, feedback for both students and staff, and a persistent record of the entire process. Margot Schuhmacher and Robert Redpath, © 2005.

关键词： Students

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Agile metrics at the Israeli Air Force

Agile metrics at the Israeli Air Force

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Agile Development Conference

作者： Y. Dubinsky D. Talby O. Hazzan A. Keren Department of Computer Science Technion-Israel Institute of Technology Israel MAMDAS-Software Development Unit Air Force IDF Israel Department of Education in Technology & Science Technion-Israel Institute of Technology Israel

It is a significant challenge to implement and research agile software development methods in organizations such as the army. Since it differs from organizations in the industry and the academia, data gathered in the army and its continuous analysis may enrich the community knowledge abut agile methods. This work describes a research, conducted during an entire release, about one development team at the Israeli Air Force that works according to Extreme Programming. The establishment of this team and the investigation of the first release is part of a long-term process, started last year, aiming to reduce delivery time while raising communication and customer collaboration. Among several themes this research is concerned with, we focus on agile metrics and provide a metrics mechanism that was established and refined along the release development.

关键词： Project management Educational technology Large-scale systems Programming profession Risk management computer science computer science education Collaborative work Environmental management Prototypes

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