This paper describes a small-scale project at the University of Wolverhampton that used handheld computers - Personal Digital Assistants ( ‘PDAs’) to develop and support the personal information skills of a cohort o...
This paper describes a small-scale project at the University of Wolverhampton that used handheld computers - Personal Digital Assistants ( ‘PDAs’) to develop and support the personal information skills of a cohort of HND computing students. The PDAs were generously lent by Sony UK and were used to help students with time-tabling, rooming and contacting tutors, as well as providing easy access to course notes and presentations. The project team have established the appropriate technical configuration for using PDAs in groups without jeopardising personal data and the students are providing a variety of insights into both the pros and cons of using PDAs. One hurdle has been establishing the necessary ‘buy-in’ from students for a short-term project but in general feedback so far is positive.
Peer-to-Peer (P2P) computing is said to be the next wave of computing after client-server and web-based computing. It provides an opportunity to harness a lot of idle peer-resources such as desktop computers across th...
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P2P systems constitute nowadays an increasingly important part of the online world that needs or will soon need all kinds of e-commerce services and applications that are normally available today on client-server plat...
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P2P systems constitute nowadays an increasingly important part of the online world that needs or will soon need all kinds of e-commerce services and applications that are normally available today on client-server platforms. When designing new e-commerce solutions in P2P particular attention must be paid to masking autonomy of the peers and the lack of any central authorities as two most important problems. In this paper we explore possibilities to bring e-commerce into P2P and propose a double auctioning mechanism that does not rely on the existence of central authorities, auctioneer in particular, and is amenable to implementation in P2P environments. The mechanism has good economic properties such as, for example, fast convergence towards efficient trading through intuitive and simple bidding strategies.
Modern web based systems frequently exchange semantically rich messages in order to carry out their tasks. Such systems include Web Services, multi-agent systems, and the semantic web in general. For such message comm...
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ISBN:
(纸本)9780769521008
Modern web based systems frequently exchange semantically rich messages in order to carry out their tasks. Such systems include Web Services, multi-agent systems, and the semantic web in general. For such message communication to be successful the terms used in messages must be interpreted according to agreed conventions on term meaning and hence usage. Ontologies can provide a common vocabulary to facilitate such meaning exchange. However semiotic constraints and application shortcomings, may still result in less than perfect semantic exchanges between applications. Where the variability of interpretation of messages is high (i.e. inconsistent or incomplete interpretation) we may have a semantically unreliable system. To date semantic reliability has only been examined in qualitative terms. This paper proposes a metric framework based on ontology test bed results to provide quantitative indices for likely semantic reliability. Such numeric indices are important, for as web applications assume more intelligent and complex tasks the potential for semantic variance in interactions only increases, and this must be carefully managed for next generation web systems to interact reliably. In order to manage anything it is invariably essential to be able to measure it; and the proposed quantitative indices provide an appropriate and viable approach for such measurement.
P2P systems constitute nowadays an increasingly important part of the online world that needs or will soon need all kinds of e-commerce services and applications that are normally available today on client-server plat...
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P2P systems constitute nowadays an increasingly important part of the online world that needs or will soon need all kinds of e-commerce services and applications that are normally available today on client-server platforms. When designing new e-commerce solutions in P2P, particular attention must be paid to masking autonomy of the peers and the lack of any central authorities as two most important problems. In this paper, we explore possibilities to bring e-commerce into P2P and propose a double auctioning mechanism that does not rely on the existence of central authorities, auctioneer in particular, and is amenable to implementation in P2P environments. The mechanism has good economic properties such as, for example, fast convergence towards efficient trading through intuitive and simple bidding strategies.
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 d...
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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
This panel paper presents the views of six researchers and practitioners of simulation modeling. Collectively we attempt to address a range of key future challenges to modeling methodology. It is hoped that the views ...
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ISBN:
(纸本)9780780387867
This panel paper presents the views of six researchers and practitioners of simulation modeling. Collectively we attempt to address a range of key future challenges to modeling methodology. It is hoped that the views of this paper, and the presentations made by the panelists at the 2004 Winter Simulation Conference will raise awareness and stimulate further discussion on the future of modeling methodology in areas such as modeling problems in business applications, human factors and geographically dispersed networks; rapid model development and maintenance; legacy modeling approaches; markup languages; virtual interactive process design and simulation; standards; and Grid computing.
Temporal information carries information about changes and time of the changes. Consider a company investing in another company. The former may choose to inject the money gradually with the amount and frequency depend...
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