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One of the main approaches for creating metadata for learn- ing resources in adaptive e-learning systems has been through the use of semantic web ontologies. This approach is limiting because it doesn’t usu- ally address a requirement for the support of annotators or the require- ment for signific...
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The creation of learning resource metadata by instructors is a time consuming and error prone process. This paper outlines a broad research agenda to mitigate these issues.. The first part of this approach is to collect prescriptive metadata from various actors involved using ...
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Many web - based information - seeking tasks are set in a social context where other people’s knowledge and advi ce improves success in finding information. However, when tightly - knit contacts (friends, family, colleagues) are not available, information seeking becomes more difficult. Inspired b...
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When searching for information, people often seek help from others. However, while people can benefit from communicating with others, they can usually satisfy their information needs, to some degree, without help. Because establishing explicit collaborations...
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Guidelines for designing information charts (such as bar charts) often state that the presentation should reduce or remove 'chart junk' - visual embellishments that are not essential to understanding the data. In contrast, some popular chart designers wrap the presented data in detaile...
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Collaborative tagging is a simple and effective method for organizing and sharing web resources using human created metadata. It has arisen out of the need for an efficient method of personal organization, as the number of digital resources in everyday lives increases. While tagging has become a...
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This paper presents the Open Annotation and Tagging System (OATS) which draws on previous work in social navigation support, web annotations systems, collaborative tagging and educational metadata. The OATS system augments the text highlighting metaphor by providing a “collaborative tagging” and...
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Today's technology-enhanced learning practices cater to students and teachers who use many different learning tools and environments and are used to a paradigm of interaction derived from open, ubiquitous, and socially oriented services. In this context, a crucial issue for education system...
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Users of social bookmarking systems take advantage of pivot browsing, an interaction technique allowing them to easily refine lists of bookmarks through the selection of filter terms. However, social bookmarking systems use one-size-fits-all ranking metrics to order refined lists. These generic ...
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One of the main obstacles for wider adoption of semantic rich e-learning systems is the difficulty in creating and maintaining domain ontologies describing courses. Annotations, such as those resulting from collaborative tagging, provide a new source of information which can be used to ease the ...