Hook, P.A.; Börner, K.: Educational knowledge domain visualizations : tools to navigate, understand, and internalize the structure of scholarly knowledge and expertise (2005)
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- Abstract
- Today, we attempt to access all humanity's knowledge and expertise using search engines such as Google. This works well for fact retrieval. However, search engines do not enlighten the user as to the inherent structure of the information being searched or give the user feedback as to its completeness. There is no 'up' button. The user is not able to see what dataset was queried, how the entries in a search result set relate to each other or how the retrieved entities relate to the entities that were not retrieved. Effective approaches to information access and management need to take into account the human user's perceptual and cognitive capabilities. Humanity is in true need of better tools to filter, navigate, understand, and utilize (scholarly) knowledge. This chapter discusses domain maps as an alternative means to organize, navigate, and internalize scholarly knowledge. We first discuss the educational uses of maps and the benefits of information visualization and spatialization for education. Subsequently, we introduce thematic maps, cognitive and concept maps, knowledge domain visualizations, and information spaces employing the metro map metaphor. All four are visual representations of geographic or abstract semantic spaces. Given that our interest is in the access, management, and internalization of scholarly knowledge, knowledge domain visualizations are discussed at greater length. To this end, we discuss how the educational use of knowledge domain visualizations is supported by the semantic network theory of learning. We also discuss some of the elements of good knowledge domain map design. These are drawn from visual perception principles and the study of human memory, and cognition. The final section projects a potential future of educational knowledge domain visualizations.
