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Montgomerie (Eds.), Proceedings of ED-MEDIA 2010-World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. SemaSun: Visualization of Semantic Knowledge based on an improved Sunburst Visualization Metaphor. Stab, C., Breyer, M., Nazemi, K., Burkhardt, D., Hofmann, C. This approach also offers incremental ontology exploring to reduce the cognitive load without losing the informational context. We improved this metaphor, which is naturally designed for displaying hierarchical data, to the tasks of displaying multiple inheritance and semantic relations. In this paper we describe a new approach of ontology visualization technique called SemaSun that is based on the sunburst visualization metaphor. This may result in information-loss, visual clutter, cognitive overload or context-loss.
Most ontology visualization techniques are based on hierarchical or graph-based visualization metaphors. To gain the most possible benefit from this data model, it is important to offer adequate visualizations, so that users can easily acquire the knowledge. They are used to model the concepts of specific domains and are widespread in the areas of the semantic web, digital libraries and multimedia database management. Ontologies have become an established data model for conceptualizing knowledge entities and describing semantic relationships between them.
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