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Cognitive styles and users' responses to structured information representation

International Journal on Digital Libraries 2004年第2期4卷 93-107页

作者： Chen, Sherry Y. Magoulas, George D. Macredie, Robert D. Department of Information Systems and Computing Brunel University Uxbridge UB8 3PH United Kingdom School of Computer Science and Information Systems Birkbeck College University of London London WC1E 7HX Malet Street United Kingdom

Structured information repositories, such as digital libraries, Web directories, and subject gateways, require effective ways to organise and manage information. This paper focuses on Web directories and investigates the relationships between users' cognitive styles and information representation. The results indicate that cognitive style influences participants' reactions to the organisation of subject categories, presentation of the results, and screen layout. The findings are applied to develop a design framework that can support the improvement of Web directories and other structured digital information resources. Finally, implications for information representation are discussed. © Springer-Verlag 2004.

关键词： Cognitive styles Individual differences User interface Web directory

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Supporting virtual documents in just-in-time hypermedia systems 04

Supporting virtual documents in just-in-time hypermedia syst...

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Proceedings of the 2004 ACM Symposium on Document Engineering

作者： Zhang, Li Bieber, Michael Millard, David Oria, Vincent Computer Science Department New Jersey Institute of Technology University Heights Newark NJ 07102 United States Information Systems Department College of Computing Sciences University Heights Newark NJ 07102 United States School of Electronics and Computer Science University of Southampton Southampton S017 1BJ United Kingdom

ISBN: (纸本)1581139381

Many analytical or computational applications, especially legacy systems, create documents and display screens in response to user queries "dynamically" or in "real time". These "virtual documents" do not exist in advance, and thus hypermedia features must be generated "just in time" - automatically and dynamically. Additionally, the hypermedia features may have to cause target documents to be generated or re-generated. This paper focuses on the specific challenges faced in hypermedia support for virtual documents of dynamic hypermedia functionality, dynamic regeneration, and dynamic anchor re-identification and re-location. It presents a prototype called JHE (Just-in-time Hypermedia Engine) to support just-in-time hypermedia across third party applications with dynamic content, and discusses issues prompted by this research.

关键词： Just in time production

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A personalised interface for web directories based on cognitive styles

A personalised interface for web directories based on cognit...

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8th ERCIM Workshop on User Interfaces for all, 2004

作者： Magoulas, George D. Chen, Sherry Y. Dimakopoulos, Dionisios School of Computer Science and Information Systems Birkbeck College University of London Malet Street LondonWC1E 7HX United Kingdom Department of Information Systems and Computing Brunel University Uxbridge MiddlesexUB8 3PH United Kingdom

ISBN: (纸本)354023375X

Implementing personalisation in Web Directories depends not only on developing appropriate architectures and equipping Web Directories with adaptation techniques, but also on incorporating human factors considerations at an early design stage. Among a range of human factors this paper explores cognitive styles and their influence on users’ preferences. Preferences with respect to the organisation and presentation of the content, and the navigation paths are identified through a small-scale study. The findings are analysed and used to implement a prototype Web Directory Browser, gearing interface features to cognitive style-related preferences. © Springer-Verlag Berlin Heidelberg 2004.

关键词： User interfaces

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Predictors for success in studying CS

Predictors for success in studying CS

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35th SIGCSE Technical Symposium on computer science Education

作者： Rountree, Nathan Vilner, Tamar Wilson, Brenda Cantwell Boyle, Roger Department of Computer Science University of Otago PO Box 56 Dunedin New Zealand Computer Science Department Open University of Israel 16 Klausner Street Tel Aviv 61392 Israel Dept. of Computer Science and Information Systems Murray State University 652 Business Building South Murray KY 42071-3314 United States School of Computing University of Leeds Leeds LS2 9JT United Kingdom

University education in all disciplines is changing fast. A global 'massification' is causing intakes to swell, and students are becoming more focused on vocational issues. When universities were smaller and attitudes different, it was simple for departments to recruit students who were relatively certain to succeed this has changed, Nowadays universities cannot 'cherry pick' the high quality output of high schools, and motivation of the intake to study has evolved far away from the pure pursuit of knowledge for which we might once have hoped. CS is affected by this in several peculiar ways: (1) It is often popular among applicants for the 'wrong' reasons: a route to a job. This is true despite the 'dotcom' collapse. (2) In many countries, pre-university CS is not easily available. Where it is available, its content and delivery is unlikely to correspond well to the university curriculum. (3) Many students have some experience of computing, often on home machines and self-taught. This can give them a wholly misleading view of what CS is, and their aptitude for it. (4) The math content of CS is often unexpected by students, and provokes a negative reaction. (5) Pre-university math preparation, while clearly of value, is often not well suited to CS. While mathematical fluency and algebraic fluency are clearly useful, the maths of CS (logic, discrete maths) are often untouched by high schools. For these, and other reasons, it can be very hard to predict the performance of CS students at entry. Members of the panel have statistical evidence from a range of countries and university systems demonstrating this to be the case. The desirability of being able to predict who will succeed is clear: If high school grades are incomplete or inaccurate predictors, what should we use instead? Meanwhile, attempts to widen participation, which are global, mean that many applicants present without traditional qualifications, and we need mechanisms to judge them. Further, filtering out

关键词： computer science

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Defining peer-to-peer data integration using both as view rules

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2004年 2944卷 91-107页

作者： McBrien, Peter Poulovassilis, Alexandra Dept. of Computing Imperial College London United Kingdom School of Computer Science and Information Systems Birkbeck College Univ. of London United Kingdom

ISBN: (纸本)3540209689

The loose and dynamic association between peers in a peer-to-peer integration has meant that, to date, implementations of peer-to-peer systems have been based on the exchange of files identified with a very limited set of attributes, and no schema is used to describe the data within those files. This paper extends an existing approach to data integration, called both-as-view, to be an efficient mechanism for defining peer-to-peer integration at the schema level, and demonstrates how the data integration can be used for the exchange of messages and queries between peers. © Springer-Verlag Berlin Heidelberg 2004.

关键词： data integration

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Software architectural style for interoperable databases

Software architectural style for interoperable databases

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International Conference on information Technology Interfaces

作者： R. Juric J. Kuljis R. Paul Cavendish School of Computer Science Department of Information Systems University of Westminster London UK Department of Information computing Brunei University Uxbridge Middlesex UK

We propose a layered and component based software architecture style which supports interoperability in multiple databases (DB). The architectural style's building blocks and its constraints are described and the deployment of two design patterns outlined. Components placed in our architectural layers exhibit a linear topology and request/reply processing style. The constraints include communications between components which are not in the adjacent architectural layers and extension of the intuitive many : one bindings between components towards many : many. We comment on similarities with mediation architectures and outline some implementation issues

关键词： Software architecture computer architecture Mediation database languages Technology management computer science information systems Topology Application software data structures

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The Healthgrid White Paper 3

The Healthgrid White Paper

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3rd Annual Conference of the Healthgrid Association, Healthgrid 2005

作者： Breton, Vincent Dean, Kevin Solomonides, Tony Aloisio, Giovanni Benkner, Siegfried Bilofsky, Howard Blanquer, Ignacio Brady, Michael Cannataro, Mario Chouvarda, Ioanna Claerhout, Brecht De Moor, Georges De Neve, Wilfried De Wagter, Carlos Fiore, Sandro Hassan, Kinda Heeren, Germaine Hernández, Vicente Herveg, Jean A.M. Hofmann, Martin Jones, Chris Koutkias, Vassilios Lloyd, Sharon Lonsdale, Guy Alonso, Victoria L. Maglaveras, Nicos Maigne, Lydia Malousi, Andigoni Martín-Sánchez, Fernando McClatchey, Richard Medico, Enzo Miguet, Serge Mirto, Maria Montagnat, Johan Nørager1, Sofie Nozaki, Kazunori Oliveira, Ilídio Castro Pennec, Xavier Poullet, Yves Merino, Juan Pedro Sánchez Strizh, Irina G. Taillet, Michel Tristram, Clive Tverdokhlebov, Nikolay Veltri, Pierangelo Ziegler, René CNRS-IN2P3 LPC Campus des Cézeaux AubiereCedex63177 France Internet Business Solutions Group Cisco Systems 9 New Square Bedfont Lakes Middlesex FelthamTW14 8HA United Kingdom University of the West of England Bristol CEMS Coldharbour Lane BristolBS6 6TH United Kingdom Center for Advanced Computational Technologies ISUFI Dept. of Innovation Engineering University of Lecce Via per Monteroni Lecce73100 Italy Institute of Scientific Computing University of Vienna Nordbergstrasse 15 ViennaA-1090 Austria University of Pennsylvania School of Engineering and Applied Science Computer and Information Science Center for Bioinformatics 1416 Blockley Hall 423 Guardian Drive PhiladelphiaPA19104-6021 United States Universidad Politecnica de Valencia Camino de Vera/n Valencia46022 Spain FRS FREng Dept. of Engineering Science Oxford University Parks Road OxfordOX1 3PJ United Kingdom Magna Graecia University of Catanzaro School of Bioinformatics and Biomedical Engineering Campus di Germaneto Viale Europa Germaneto Catanzaro88100 Italy Aristotle University The Medical School Lab of Medical Informatics Box 323 Thessaloniki54124 Greece Custodix NV Verlorenbroodstraat 120 Bus 14 MerelbekeB-9820 Belgium Research in Advanced Medical Informatics and Telematics UZ Gent 5K3 De Pintelaan 185 GentB9000 Belgium Department of Radiotherapy Ghent University Hospital Building P7 De Pintelaan 185 GentB-9000 Belgium Laboratoire LIRIS Université Lumière Lyon 2 Campus Porte des Alpes 5 avenue Pierre Mendès France Bron69676 France av. E.Mounierlaan 83 Brussels1200 Belgium Faculté de Droit de Namur - FUNDP Centre de Recherches Informatiques & Droit 5 rempart de la Vierge Namur5000 Belgium Schloss Birlinghoven Sankt Augustin53754 Germany CERN Geneva 231211 Switzerland Oxford University Computing Laboratory Wolfson Building OxfordOX1 3QD United Kingdom C&C Research Laboratories NEC Europe Ltd. Rathausallee 10 Sankt AugustinD-53757 Germany Medic

ISBN: (纸本)158603510X

Over the last four years, a community of researchers working on Grid and High Performance computing technologies started discussing the barriers and opportunities that grid technologies must face and exploit for the development of health-related applications. This interest lead to the first Healthgrid conference, held in Lyon, France, on January 16th–17th, 2003, with the focus of creating increased awareness about the possibilities and advantages linked to the deployment of grid technologies in health, ultimately targeting the creation of a European/international grid infrastructure for health. The topics of this conference converged with the position of the eHealth division of the European Commission, whose mandate from the Lisbon Meeting was "To develop an intelligent environment that enables ubiquitous management of citizens’ health status, and to assist health professionals in coping with some major challenges, risk management and the integration into clinical practice of advances in health knowledge." In this context "Health" involves not only clinical procedures but covers the whole range of information from molecular level (genetic and proteomic information) over cells and tissues, to the individual and finally the population level (social healthcare). Grid technology offers the opportunity to create a common working backbone for all different members of this large "health family" and will hopefully lead to an increased awareness and interoperability among disciplines. The first HealthGrid conference led to the creation of the Healthgrid association, a non-profit research association legally incorporated in France but formed from the broad community of European researchers and institutions sharing expertise in health grids. After the second Healthgrid conference, held in Clermont-Ferrand on January 29th–30th, 2004, the need for a "white paper" on the current status and prospective of health grids was raised. Over fifty experts from different areas of grid tec

关键词： Health risks

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A survey of acceptance of e-government services in the UK

A survey of acceptance of e-government services in the UK

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International Conference on information Technology Interfaces

作者： P. Adeshara R. Juric J. Kuljis R. Paul Castell Safety Int. Ltd. London UK Cavendish School of Computer Science Department of Information Systems University of Westminster London UK Department of Information Systems and Computing Brunei University Uxbridge Middlesex UK

This paper gives an insight into the readiness of small and medium sized enterprises (SMEs) for accepting e-government services in he UK. We conducted a survey of 128 SMEs, which revealed that there is a moderate demand for e-government services, but they were not rated as efficient and essential for SMEs' businesses as conventional services. The proliferation of the UK government's Web sites, which requires co-ordination between several organisations/multiple sites, and inadequate awareness of such services, do not comply with the common concepts of e-governance and consequently have an impact on the SMEs acceptance of e-government services in the UK

关键词： Electronic government Business Road safety information systems Industrial relations computer science Communications technology Joining processes Shape Legislation

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Conditions for resolving observability problems in distributed testing

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24th IFIP WG 6.1 International Conference on Formal Techniques for Networked and Distributed systems, FORTE 2004

作者： Chen, Jessica Hierons, Robert M. Ural, Hasan School of Computer Science University of Windsor WindsorONN9B 3P4 Canada Department of Information Systems and Computing Brunel University Uxbridge MiddlesexUB8 3PH United Kingdom School of Information Technology and Engineering University of Ottawa OttawaONK1N 6N5 Canada

ISBN: (纸本)3540232524

Controllability and observability problems may manifest themselves during the application of a test or checking sequence in a test architecture where there are multiple remote testers. These problems often require the use of external coordination message exchanges among testers during testing. It is desired to construct a test or checking sequence from the specification of the system under test such that it will be free from these problems without requiring the use of external coordination messages. This paper investigates conditions that allow us to construct such a test or checking sequence. For specifications satisfying these conditions, procedures for constructing subsequences that eliminate the need for using external coordination messages are given. © IFIP International Federation for information Processing 2004.

关键词： Specifications

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Quality evaluation of ultrasound imaging in the carotid artery

Quality evaluation of ultrasound imaging in the carotid arte...

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Mediterranean Electrotechnical Conference (MELECON)

作者： C.P. Loizou C.S. Pattichis R.S.H. Istepanian M. Pantziaris T. Tyllis A. Nicolaides Department of Computer Science Inter College Limassol Cyprus Department of Computer Science University of Cyprus Cyprus Mobile Information and Network Technologies Research Center (MINT@K) School of Computing and Information Systems Kingston University London UK Cyprus Institue of Neurology and Genetics Nicosia Cyprus

Image quality assessment plays an important role in various image-processing applications. In this work, we evaluate image quality criteria based on mean square error, signal to noise error, and quality and structural similarity indices on ultrasound imaging of the carotid artery. These criteria as well as statistical and texture features were computed on 80 images recorded from two different ultrasound scanners before and after despeckle filtering, and after despeckle filtering and normalization. Results showed that image quality was improved after despeckle filtering and normalization for both scanners. This finding is also in agreement with the optical perception evaluation carried out by two vascular experts.

关键词： Ultrasonic imaging Carotid arteries Optical filters Image quality Optical imaging Filtering Degradation Electronic mail Adaptive optics Biomedical optical imaging

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