An algorithm for drawing general undirected graphs
Information Processing Letters
Graph drawing by force-directed placement
Software—Practice & Experience
Area requirement and symmetry display of planar upward drawings
Discrete & Computational Geometry
The complexity of approximating a nonlinear program
Mathematical Programming: Series A and B
Algorithms for area-efficient orthogonal drawings
Computational Geometry: Theory and Applications - Special issue on geometric representations of graphs
Readings in information visualization: using vision to think
Readings in information visualization: using vision to think
Interactive Orthogonal Graph Drawing
IEEE Transactions on Computers
Visualizing Abstract Objects and Relations
Visualizing Abstract Objects and Relations
Graph Drawing: Algorithms for the Visualization of Graphs
Graph Drawing: Algorithms for the Visualization of Graphs
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
Creating Semantic Web Contents with Protégé-2000
IEEE Intelligent Systems
A Technique for Drawing Directed Graphs
IEEE Transactions on Software Engineering
Spring Algorithms and Symmetry
COCOON '97 Proceedings of the Third Annual International Conference on Computing and Combinatorics
OntoEdit: Guiding Ontology Development by Methodology and Inferencing
On the Move to Meaningful Internet Systems, 2002 - DOA/CoopIS/ODBASE 2002 Confederated International Conferences DOA, CoopIS and ODBASE 2002
DCMI '01 Proceedings of the International Conference on Dublin Core and Metadata Applications 2001
Visualisation of RDF(S)-based Information
IV '03 Proceedings of the Seventh International Conference on Information Visualization
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We propose an algorithm for the 3D visualization of general ontology models used in many applications, such as semantic web, entity-relationship diagrams and other database models. The visualization places entities in the 3D space. Previous techniques produce drawings that are 2-dimensional, which are often complicated and hard to comprehend. Our technique uses the third dimension almost exclusively for the display of the isa relationships (links) while the property relationships (links) are placed on some layer (plane). Thus the semantic difference between isa links and property links, which should be as vertical or as horizontal as possible respectively, is emphasized. Special reference is made on a certain model, the CIDOC Conceptual Reference Model.