| Summary: | 碩士 === 國立交通大學 === 資訊科學學系 === 84 === Educational hypermedia provides flexible access to
instructionalinformation and supports convenient learning
styles.However, what it provides is a non-sequential information
presentationwhich is different from traditional instructional
systems.Thus, there are many problems resulted from educational
hypermedia systems.In an ideal educational hypermedia system, in
addition to supportingabundant courseware, it should provide
courseware analytical tools,knowledge construction assistance
tools, and navigation guidance tools.Furthermore, in an
educational hypermedia environment, courseware structure and
learning behavior are the main research topics.In this thesis,
we provide several systematic analytical models in order to
approach an ideal educational hypermedia system.To identify
courseware structures, we adopt four graph algorithms for
educational hypermedia analysis: MinimumCut-Set, Strongly
Connected Components, Cut Vertex, and Dynamic Analysis.By using
them, we are able to construct a hierarchical knowledge space,to
analyze a courseware network to see whether it is well-
structured, and to design a hierarchical map to help users
learning in a hypermedia environment.To understand learning
behavior, we provide two quantitative measures:Extensional Hyper
Degree and Hyper Distance.According to the computational
results, we are able to better understand students'' navigation
activities in the educational environment.
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