文章基本信息

标题：Towards a Semantic Repository for Learning Objects: Design and Evaluation of Core Services
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作者：João Carlos Gluz ; Ederson Luis Silveira ; Luiz Rodrigo Jardim da Silva 等
期刊名称：Journal of Universal Computer Science
印刷版ISSN：0948-6968
出版年度：2016
卷号：22
期号：1
页码：16-36
DOI：10.3217/jucs-022-01-0016
出版社：Graz University of Technology and Know-Center
摘要：Repositories form a central piece of the learning objects technology, providing storage spaces where the objects can be catalogued, located, and retrieved. However, repositories usually support only syntactical and morphological aspects of learning objects metadata for cataloguing and searching purposes. This article proposes two integrated systems, which provide the core services of a semantic repository of learning objects. MSSearch system uses ontology alignment techniques to create a semantic search engine and a semantic database for learning objects metadata. MSSearch supports the integration of multiple educational ontologies through a combination of ontology aligning and mapping mechanisms. In turn, Linnaeus system offers intelligent support for the creation and editing of learning object metadata. This tool employs the technologies of intelligent agents and educational ontologies to provide an intelligent semi-automatic metadata filling service. This article presents the main architectural components, ontological models and interface facilities of these systems. The text finishes with the presentation of the experiments conducted to validate Linnaeus and MSSearch.
关键词：cataloguing; intelligent agents; learning objects; ontologies; semantic repository; semantic search