267,500 research outputs found

    Knowledge and learning in virtual communities of practice (VCoPs): Theoretical underpinnings

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    The aim of the paper is to revisit the concepts of knowledge and learning in virtual communities of practice (VCoPs). Despite a great variety of approaches and successful examples of deployment of VCoPs, little research attention is paid to developing models or frameworks conceptualizing knowledge and learning in VCoPs. The review of the selected literature has enabled to propose a multi metaphorical framework of knowledge and a conceptual model of learning in VCoPs. The author uses a metaphoric approach to address the idea of paradigm shift and suggests a non-linear perspective on knowledge evolution affected by technological innovations. The multi metaphorical framework under consideration shows the shifts from behavioral learning to networked learning where VCoPs are located. The definition of VCoPs and their features are paid special attention to in the research. VCoPs are viewed from three overlapping dimensions: Community of practice, virtual domain of technology enhanced learning and discipline-based learning community of practice. Such a view represents a conceptual idea of discipline-based VCoPs which arises when three main components interplay: domain (virtual environment where teacher-student social interaction takes place); the community (the principles of apprenticeship as a learning model); the practice (developing the repertoire to solve problems within the discipline context). Also, the suggested multi metaphorical framework enables viewing learning within VCoP from knowledge- creation metaphor which leads to examination of learning from the perspectives of activity theory. Activity theory is used not as an analytical tool in the research but mainly as a descriptive approach to delineate learning within VCops as a technology mediated activity. The knowledge is constructed within the community, but the interaction and learning are mediated via digital artifacts. Applying principles of activity theory, VCoPs can be analyzed as complex systems where subjects interact with the community using technologies. Systems approach is applied to work out a logical model of learning activity in VCoPs consisting of axiological, cognitive, professional-educational, technological, communicative, reflexive components. The proposed model should be considered as a schematically descriptive model of learning within VCoPs because complex systems cannot be perceived using one approach due to their multidimensional and complex nature.The paper concludes by the discussion of the findings and recommendations for further research. The topic is of interest because better understanding of the concepts of knowledge and subsystems of learning concept in the era of technologies is sure to enhance teaching practice

    Rethinking the Role of Information Systemsin a Changing Age: An Exploration

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    The purpose of this paper is to explore the impact of Information Systems (IS) on the fundamental questions of life. This paper presents a few of the many issues that lie at the intersection of IS, philosophy, and spirituality. Such issues include the need to incorporate meaning and values in the foundation of IS; the evolution of IS from transaction processing systems to virtual community networks; the distinction between data, information, knowledge, and wisdom; and the evolving role of IS in a changing context. A Web site will be created to enable further discussion of these significant issue

    Community dynamics in an online law journal

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    Online communities are continuously evolving socio-technical systems. To provide them with better change management support, a systematic analysis of the norms that govern their evolution is required. In this paper, we present an approach that was used to analyze the community dynamics in an online law journal. Electronic journals in the legal domain are essential instruments in the validation and distribution of new legal knowledge. To ensure the high quality of these e-journals, the dynamics of the online communities in which the various journal stakeholders interact need to be well understood. We outline the evolution of one of the first successful legal e-journals: the Electronic Journal of Comparative Law. We describe the change management lessons learnt in practice and use these to illustrate our diagnostic approach for self-governance analysis in virtual communities.

    Modeling Evolutionary Dynamics of Lurking in Social Networks

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    Lurking is a complex user-behavioral phenomenon that occurs in all large-scale online communities and social networks. It generally refers to the behavior characterizing users that benefit from the information produced by others in the community without actively contributing back to the production of social content. The amount and evolution of lurkers may strongly affect an online social environment, therefore understanding the lurking dynamics and identifying strategies to curb this trend are relevant problems. In this regard, we introduce the Lurker Game, i.e., a model for analyzing the transitions from a lurking to a non-lurking (i.e., active) user role, and vice versa, in terms of evolutionary game theory. We evaluate the proposed Lurker Game by arranging agents on complex networks and analyzing the system evolution, seeking relations between the network topology and the final equilibrium of the game. Results suggest that the Lurker Game is suitable to model the lurking dynamics, showing how the adoption of rewarding mechanisms combined with the modeling of hypothetical heterogeneity of users' interests may lead users in an online community towards a cooperative behavior.Comment: 13 pages, 5 figures. Accepted at CompleNet 201

    Past, present and future of information and knowledge sharing in the construction industry: Towards semantic service-based e-construction

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    The paper reviews product data technology initiatives in the construction sector and provides a synthesis of related ICT industry needs. A comparison between (a) the data centric characteristics of Product Data Technology (PDT) and (b) ontology with a focus on semantics, is given, highlighting the pros and cons of each approach. The paper advocates the migration from data-centric application integration to ontology-based business process support, and proposes inter-enterprise collaboration architectures and frameworks based on semantic services, underpinned by ontology-based knowledge structures. The paper discusses the main reasons behind the low industry take up of product data technology, and proposes a preliminary roadmap for the wide industry diffusion of the proposed approach. In this respect, the paper stresses the value of adopting alliance-based modes of operation

    Virtual reality in the service of user participation in architecture

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    The issue of user participation in the processes of building and urban design is enjoying renewed attention following its relative neglect over the last 20 years due, in large measure, to significant advances in emerging information technologies, particularly multimedia, virtual reality and internet technologies. This paper re-established the theoretical framework for participatory design evolved in the late sixties and early seventies as part of the movement towards a more explicit design methodology and attempts an explanation of why the concept failed to gain commitment from the architectural and urban design professionals. The paper then gives an account of two significant developments in the evolution of the application of information technologies with which the authors have been engaged. These are: i. a responsive and interactive interface to wholly immersive and realistic virtual reality representations of proposed buildings and urban neighbourhoods. ii. an intuitive and platform-independent VR modelling environment allowing collaborative evolution of the scheme from within the virtual world. The impact of these IT developments is demonstrated in the context of the design of a leisure facility for a community of users with physical impairment

    Innovative in silico approaches to address avian flu using grid technology

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    The recent years have seen the emergence of diseases which have spread very quickly all around the world either through human travels like SARS or animal migration like avian flu. Among the biggest challenges raised by infectious emerging diseases, one is related to the constant mutation of the viruses which turns them into continuously moving targets for drug and vaccine discovery. Another challenge is related to the early detection and surveillance of the diseases as new cases can appear just anywhere due to the globalization of exchanges and the circulation of people and animals around the earth, as recently demonstrated by the avian flu epidemics. For 3 years now, a collaboration of teams in Europe and Asia has been exploring some innovative in silico approaches to better tackle avian flu taking advantage of the very large computing resources available on international grid infrastructures. Grids were used to study the impact of mutations on the effectiveness of existing drugs against H5N1 and to find potentially new leads active on mutated strains. Grids allow also the integration of distributed data in a completely secured way. The paper presents how we are currently exploring how to integrate the existing data sources towards a global surveillance network for molecular epidemiology.Comment: 7 pages, submitted to Infectious Disorders - Drug Target
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