EDGE-EQUALIZED TREEMAPS - Information Visualisation: Techniques, Usability and Evaluation - page 124

8.3 Performance
We executed our algorithm on an Intel Core i7 CPU 920 @ 2.67 GHz with
6 GB of RAM and Windows 7 OS. It took 7861 seconds to represent the
rainfall data in an Edge-Equalized Treemap. On the other hand, the
Squarified Treemap required only 0.008 seconds. Comparing these values,
it is clear that the Edge-Equalized Treemap took a long time to process. In
future work, we will examine ways to speed up the construction of Edge-
Equalized Treemaps.
9 Conclusions
We have focused on the representation of embedded charts in a Treemap,
and developed the Edge-Equalized Treemap. This representation can
equalize the horizontal widths of each chart. Therefore, we can easily
compare charts just by looking at them. The height of each leaf rectangle
in an Edge-Equalized Treemap corresponds to its data, and no large
margins are produced in the charts. Using our representation, we expect to
be able to support the representation of various data in a Treemap.
Acknowledgement
The authors thank Dr. Simona Vasilache for her helpful comments. This
work was partially supported by JSPS KAKENHI 22500081.
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