Michael C. Harris's Library tagged research →  View Popular

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research decisiontrees j48 c4.5

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categorization research

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categorization research

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OER research literature

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research literature rlo

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littlejohn research literature

This paper develops the concept of relevance in the context of learning object search. It proposes a set of metrics to estimate the topical, personal and situational relevance dimensions. These metrics are derived mainly from usage and contextual information. An exploratory evaluation of the metrics shows that even the simplest ones provide statistically significant improvement in the ranking order over the most common algorithmic relevance metric. Moreover, the combination of the metrics through the RankNet learning sorts the result list 50% better than the base-line ranking. The paper also presents openquestions in the field of learning object relevance ranking that deserve further attention.

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rlo relevance ranking search research

the biggest difference between learning materials repositories and research paper repositories is that there is already a practice around research papers: a paper is an artifact that is well understood by author and reader: we know what they’re for and what to do with them. Open access is about changing the economic model under which that practice happens. Whereas sharing learning materials with anyone other than students is still innovative: it happens, lots, at lots of different levels, via email, through VLEs, within subject communities, but as others have implied, it’s not a well understood practice.

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learning objects repositories rlo research

a couple of the reasons that learning (object) repositories have been unsuccessful: - learning objects (learning materials) are not free-standing items in the way that published articles are designed to be. In most cases they are designed to work in a particular context - for the lecturer who designs them with a particular set of learning objectives, pedagogic styles, students etc in mind. This does not translate well. - materials that are designed for use only by their creator only have to worry about "fair use"; whereas once they are published you have to start to get rights clearances for all those pictures in them etc - we still don’t know what makes a good "size" for re-usable / re-purposable (if there be such a word). Way back (around the time of TLTP) there were debates about widgets (minute) versus courses. While there is some agreement that it is somewhere in the middle it is not clear where.

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learning objects repositories rlo research

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R statistics research programming

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elearning research

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research statistics

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research rlo elearning

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research statistics kappa

Regina Barzilay

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research search mit rlo

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research spam web

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research spam web

RMIT, sometimes in conjunction with other Australian Technology Network Universities, offers research degree candidates a number of opportunities for professional development.

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rmit research

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solr research tutorial lucene search

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rlo collections research