23,179 research outputs found

    Физика ветра

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    This paper reports on the use of a Web 2.0 artifact by sixteen 14/15 year-old pupils in a formal learning context. The gathered data provides a first appreciation of how the participants saw the action of tagging resources as affecting five dimensions of their learning experience: satisfaction, feeling of learning, effects on recall, effects on understanding and sense of personalization of the learning sequence. Based on these self-reported judgments, a discussion is opened on the mere decision to divert highly complex Web 2.0 tools into "ordinary" learning tools. The study also raises side questions about how pupils give an account of their learning experience and how they balance, or not, content and process aspects is such a description

    Workshop: Tagging, Bookmarking and Scholarly References: How Web 2.0 Technologies Benefit the Student, Scholar and Researcher

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    A primary challenge for any student, scholar or researcher is organizing and managing the massive amount of content readily available in today’s digital world. Several attempts have been made to provide solutions to this problem but many have fallen short of expectations. For example, many of the reference management software programs such as EndNote or RefWorks, as licensed products, are designed to support individual researchers in managing personal reference collections. On the other hand, the Web, and in particular Web 2.0, represents an approach to an evolving use of the Internet as a dynamic, participatory and collaborative medium for finding, organizing, managing, and sharing sources of information. This workshop introduces the use of user-defined tagging and social bookmarking within the context of an online freely available resource (CiteULike) for managing and sharing scholarly sources of information. These Web 2.0 technologies were introduced and implemented in an interdisciplinary NSF funded project focused on teaching students to effectively assess web site validity, engage in collaborative sharing and organization of scientific literature, and utilize technologies they were familiar with, social bookmarking and tagging, to research a scientific question and synthesize their findings. The benefits of sharing scholarly resources to facilitate collaborative work were demonstrated through this project

    Tagging and Tag Recommendation

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    Tagging has emerged as one of the best ways of associating metadata with objects (e.g., videos, texts) in Web 2.0 applications. Consisting of freely chosen keywords assigned to objects by users, tags represent a simpler, cheaper, and a more natural way of organizing content than a fixed taxonomy with a controlled vocabulary. Moreover, recent studies have demonstrated that among other textual features such as title, description, and user comments, tags are the most effective to support information retrieval (IR) services such as search, automatic classification, and content recommendation. In this context, tag recommendation services aim at assisting users in the tagging process, allowing users to select some of the recommended tags or to come up with new ones. Besides improving user experience, tag recommendation services potentially improve the quality of the generated tags, benefiting IR services that rely on tags as data sources. Besides the obvious benefit of improving the description of the objects, tag recommendation can be directly applied in IR services such as search and query expansion. In this chapter, we will provide the main concepts related to tagging systems, as well as an overview of tag recommendation techniques, dividing them into two stages of the tag recommendation process: (1) the candidate tag extraction and (2) the candidate tag ranking

    Web 2.0 and folksonomies in a library context

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    This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2011 ElsevierLibraries have a societal purpose and this role has become increasingly important as new technologies enable organizations to support, enable and enhance the participation of users in assuming an active role in the creation and communication of information. Folksonomies, a Web 2.0 technology, represent such an example. Folksonomies result from individuals freely tagging resources available to them on a computer network. In a library environment folksonomies have the potential of overcoming certain limitations of traditional classification systems such as the Library of Congress Subject Headings (LCSH). Typical limitations of this type of classification systems include, for example, the rigidity of the underlying taxonomical structures and the difficulty of introducing change in the categories. Folksonomies represent a supporting technology to existing classification systems helping to describe library resources more flexibly, dynamically and openly. As a review of the current literature shows, the adoption of folksonomies in libraries is novel and limited research has been carried out in the area. This paper presents research into the adoption of folksonomies for a University library. A Web 2.0 system was developed, based on the requirements collected from library stakeholders, and integrated with the existing library computer system. An evaluation of the work was carried out in the form of a survey in order to understand the possible reactions of users to folksonomies as well as the effects on their behavior. The broad conclusion of this work is that folksonomies seem to have a beneficial effect on users’ involvement as active library participants as well as encourage users to browse the catalogue in more depth

    Digital learning objects: a local response to the California State University system initiative

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    The purpose of this paper is to present a virtual library plan created by library directors of the 23 California State University (CSU) system campuses. The information literacy portion of the project offers a repository of high quality interactive digital learning objects (DLOs) in the MERLOT repository. Therefore, DLOs created locally at the Dr Martin Luther King, Jr Library at San José State University (SJSU) focus on topics that supplement the “core” DLO collection

    Studying web 2.0 interactivity: a research framework and two case studies

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    With more than one third of the world’s population being online, the Internet has increasingly become part of modern living, giving rise to popular literature that often takes a teleological and celebratory perspective, heralding the Internet and Web 2.0 specifically, as an enabler of participation, democracy, and interactivity. However, one should not take these technological affordances of Web 2.0 for granted. This article applies an interaction framework to the analysis of two Web 2.0 websites viewed as spaces where interaction goes beyond the mere consultation and selection of content, i.e., as spaces supporting the (co)creation of content and value. The authors’ approach to interactivity seeks to describe websites in objective, structural terms as spaces of user, document, and website affordances. The framework also makes it possible to talk about the websites in subjective, functional terms, considering them as spaces of perceived inter-action, intra-action and outer-action affordances. Analysis finds that both websites provide numerous user, document, and website affordances that can serve as inter-action or social affordances

    Emergent Capabilities for Collaborative Teams in the Evolving Web Environment

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    This paper reports on our investigation of the latest advances for the Social Web, Web 2.0 and the Linked Data Web. These advances are discussed in terms of the latest capabilities that are available (or being made available) on the Web at the time of writing this paper. Such capabilities can be of significant benefit to teams, especially those comprised of multinational, geographically-dispersed team members. The specific context of coalition members in a rapidly formed diverse military context such as disaster relief or humanitarian aid is considered, where close working between non-government organisations and non-military teams will help to achieve results as quickly and efficiently as possible. The heterogeneity one finds in such teams, coupled with a lack of dedicated private network infrastructure, poses a number of challenges for collaboration, and the current paper represents an attempt to assess whether nascent Web-based capabilities can support such teams in terms of both their collaborative activities and their access to (and sharing of) information resources

    Social tagging and Dublin Core : a preliminary proposal for an application profile fo DC social tagging

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    The Web 2.0 maximizes the Internet concept of encouraging its users to cooperate effectively for the offer of virtual services and content organization. Among the various potentialities of the Web 2.0, folksonomy appears as a result of the free assignment of tags to the Web’s resources by their users/ readers. Despite tags describe the Web’s resources, generally they are not integrated in the metadata. In order for them to be intelligible by machines and therefore used in the Semantic Web context, they have to be automatically allocated to specific metadata elements. There are many metadata formats. The focus of this investigation will be the Dublin Core Metadata Terms (DCTerms) that is a widely used set of properties for the description of electronic resources. A subset of DCTerms, the Dublin Core Metadata Element Set (DCMES), has been adopted by the majority of Institutional Repositories’ platforms as a way to promote interoperability. We propose a research that intends to identify elements of the metadata originated from folksonomies and propose an application profile for DC Social Tagging. That will allow tags to be conveniently processed by interoperability protocols, particularly the Open Archives Initiative – Protocol for Metadata Harvesting (OAI-PMH). This paper will present the results of the pilot study developed in the beginning of the research as well as the metadata elements preliminarily defined.Capes/MEC - Brasil.Fundação para a Ciência e Tecnologia (FCT)

    An illustrated framework for the analysis of Web2.0 interactivity

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    Enriching ontological user profiles with tagging history for multi-domain recommendations

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    Many advanced recommendation frameworks employ ontologies of various complexities to model individuals and items, providing a mechanism for the expression of user interests and the representation of item attributes. As a result, complex matching techniques can be applied to support individuals in the discovery of items according to explicit and implicit user preferences. Recently, the rapid adoption of Web2.0, and the proliferation of social networking sites, has resulted in more and more users providing an increasing amount of information about themselves that could be exploited for recommendation purposes. However, the unification of personal information with ontologies using the contemporary knowledge representation methods often associated with Web2.0 applications, such as community tagging, is a non-trivial task. In this paper, we propose a method for the unification of tags with ontologies by grounding tags to a shared representation in the form of Wordnet and Wikipedia. We incorporate individuals' tagging history into their ontological profiles by matching tags with ontology concepts. This approach is preliminary evaluated by extending an existing news recommendation system with user tagging histories harvested from popular social networking sites
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