A 2-tiers P2P Architecture to Navigate the Learning Objects Sea

Learning object repositories (LORs) are a strategic asset for e-learning. In a quite short period the scenario of use quickly changed from an initial scarcity of learning objects (LOs) to an overabundance disorienting users. To address this problem, we present a conceptual model which leverages on t...

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Bibliographic Details
Main Authors: Clematis, A., Forcheri, P., Quarati, A.
Format: Conference Proceeding
Language:English
Subjects:
Collaborative and Personalized Learning
Distributed Architectures
Educational technology
Feedback
Geology
Geoscience
Laboratories
Layout
Learning Object Repositories
Navigation
Safety
Streaming media
Virtual reality
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Summary:Learning object repositories (LORs) are a strategic asset for e-learning. In a quite short period the scenario of use quickly changed from an initial scarcity of learning objects (LOs) to an overabundance disorienting users. To address this problem, we present a conceptual model which leverages on the creation and sharing of comments about the use of LOs as experimented by learners. These comments originate a superstructure on interrelated and distributed LOs in the form of an annotated graph-of-comments. By relying on the graph structure, an ordering feature and a mechanism for extracting personalized views are provided. Observing that both LORs and users are expected to belong to different communities, we propose a two-tiers architecture based on hybrid peer-to-peer technology efficiently realizing navigation on LORs.
ISSN:2161-3761
2161-377X
DOI:10.1109/ICALT.2009.141