Home
Michael C. Harris's Library tagged → View Popular
CSDL - IEEE Transactions on Learning Technologies
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.
JISCmail - JISC-REPOSITORIES Archives
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.
JISCmail - JISC-REPOSITORIES Archives
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.
ResourceShelf » MIT develops lecture search engine to aid students, View Lectures Online
Regina Barzilay
CD-LOR Project - Home
The JISC funded CD-LOR (Community Dimensions of Learning Object
Repositories) project is investigating enablers and barriers to
successful embedding of learning object (LO) repositories within a
diverse range of learning communities.
Part of our wor
eFoundations: It's all in the context
Post describing a workshop on contextual metadata for learning objects
Selected Tags
Related Tags
Sponsored Links
Top Contributors
-
Learning Objects
reusable learning objects, ...
Items: 3 | Visits: 8
Created by: Liz Stover
Diigo is about better ways to research, share and collaborate on information. Learn more »
Join Diigo