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Fig. 3.14
The design of ParadigmView (© 2001 IEEE)
the knowledge domain of computer graphics, although this is a snapshot from a
limited viewpoint - the literature of computer graphics is certainly much wider than
the scope of CG&A. The original author co-citation network contains as many as
28,638 links, which is 46 % of all the possible links, not including self-citations.
This amount of links will clutter visualizations. So we applied Pathfinder network
scaling to reduce the number of links. The number of links in the Pathfinder network
is 355.
We used a three-dimensional virtual landscape to represent author co-citation
structures. Most influential scientists in the knowledge domain tend to appear
near to the center of the intellectual structure. In contrast, researchers who have
unique expertise are likely to appear in periphery areas. The virtual landscape also
allows users to access further details regarding a particular author in the intellectual
structure, for example, a list of most cited work of the author, abstracts and even
full content of his/her articles. In the next chapter, we introduce animations to the
citation profiles so that the dynamics of the citation tendency of relevant specialties
over two decades can be captured and replayed within seconds.
3.2.5
Visualizing Trends and Patterns of Evolution
The map of the universe conveys two types of information simultaneously - both
spatial and temporal. While spatial information specifies the distance between
galaxies and how astronomical objects are related to each other in the universe,
temporal information provides an equivalent interpretation of the spatial property in
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