An algorithm for drawing general undirected graphs
Information Processing Letters
Graph drawing by force-directed placement
Software—Practice & Experience
TMRA'06 Proceedings of the 2nd international conference on Topic maps research and applications
Proposed approach for evaluating the quality of topic map,,
MEDI'11 Proceedings of the First international conference on Model and data engineering
CITOM: An incremental construction of multilingual topic maps
Data & Knowledge Engineering
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As Topic Maps allow a structural representation of knowledge, this structure often needs to be visually presented to end-users. Issues, often contradictory, such as representation and navigation requirements, arise. TopiMaker addresses most of these issues by putting the Topic Map as a graph on a 2D ground plane in an interactive 3D world. Topics can be elevated to planes that are parallel to the ground plane. This results in some unique qualities. Furthermore, the notion of ghost topics is introduced to alleviate information overload and occlusion problems. A separate window exploits tree-like features of certain association types. Features such as filtering, searching, selecting, modifying, importing, exporting, merging, querying and constraining the Topic Map are integrated with this visualization technique to make of TopiMaker a novel Topic Map authoring environment.