A semantic approach for learning objects repositories with knowledge reuse

Authors:
Isabel Azevedo;Rui Seiça;Adela Ortiz;Eurico Carrapatoso;Carlos Vaz De Carvalho
Affiliations:
Instituto Superior de Engenharia do Porto, GILT, Porto, Portugal;Faculdade de Engenharia da Universidade do Porto, Porto, Portugal;Instituto Superior de Engenharia do Porto, GILT, Porto, Portugal;Faculdade de Engenharia da Universidade do Porto, Porto, Portugal;Instituto Superior de Engenharia do Porto, GILT, Porto, Portugal
Venue:
EKAW'10 Proceedings of the 17th international conference on Knowledge engineering and management by the masses
Year:
2010

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Abstract

In this paper we discuss how the inclusion of semantic functionalities in a Learning Objects Repository allows a better characterization of the learning materials enclosed and improves their retrieval through the adoption of some query expansion strategies. Thus, we started to regard the use of ontologies to automatically suggest additional concepts when users are filling some metadata fields and add new terms to the ones initially provided when users specify the keywords with interest in a query. Dealing with different domain areas and having considered impractical the development of many different ontologies, we adopted some strategies for reusing ontologies in order to have the knowledge necessary in our institutional repository. In this paper we make a review of the area of knowledge reuse and discuss our approach.