Ontology-Based Representation for Accessible OpenCourseWare Systems

被引：7
|
作者：
Elias, Mirette [1 ,2 ]
Lohmann, Steffen [2 ]
Auer, Soeren [3 ]
机构：
[1] Univ Bonn, Inst Comp Sci, D-53115 Bonn, Germany
[2] Fraunhofer IAIS, D-53757 St Augustin, Germany
[3] Tech Informat Bibliothek TIB, D-30167 Hannover, Germany
来源：
INFORMATION | 2018年 / 9卷 / 12期
关键词：
OpenCourseWare; OCW; ACCESSIBLE; IMS AfA; ontologies; web accessibility;
D O I：
10.3390/info9120302
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
OpenCourseWare (OCW) systems have been established to provide open educational resources that are accessible by anyone, including learners with special accessibility needs and preferences. We need to find a formal and interoperable way to describe these preferences in order to use them in OCW systems and retrieve relevant educational resources. This formal representation should use standard accessibility definitions of OCW that can be reused by other OCW systems to represent accessibility concepts. In this article, we present an ontology to represent the accessibility needs of learners with respect to the IMS AfA specifications. The ontology definitions together with rule-based queries are used to retrieve relevant educational resources. Related to this, we developed a user interface component that enables users to create accessibility profiles representing their individual needs and preferences based on our ontology. We evaluated the approach with five examples profiles.
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页数：12
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