
Simplex: 2D representation of simplexes in dimensions 620, found by minimization of MDS stress measure using simmulated annealing.
In 10D the point in the middle is removed and two points appear in the inner circle; from 1019D points are added to the inner circle.
In 13D all points are on the circle, but in 7D one point is put in the middle; this seems to be the best configurations if simple stress measure is used. From 79D there is only one point in center and points are added to the circle.
In 13D there are 3 points in the inner circle, in 14D four, and 15D adds a point to the outer circle.
17D, 18D and 19D solutions show similar patterns, adding points either to inner or outer cirlces.
In 20D there are two circles and a points in the middle appears for the first time.
These pictures are slightly messy because it is hard to find hig precision solution using simulated annealing.
Fro higher number of dimensions we have not tried to find the solutions, they will probably show similar patterns, but as usually, it is difficult to predict how highD geometry will look like.
We have published thse pictures in: Duch W and Naud A (1996)
Simplexes,
MultiDimensional Scaling and SelfOrganized Mapping
Proc. of the 8th joint EPSAPS International Conference on Physics Computing '96, Kraków
1721.9.1996, pp. 367370
Some opart creations look similar to these mappings ...
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Last modification 1.09.2006,
Wlodzislaw Duch