Atom {FCPS}

Atom introduced in [Ultsch, 2004].

Description

Two nested spheres with different variances that are not linear not separable. Detailed description of dataset and its clustering challenge is provided in [Thrun/Ultsch, 2020].

Usage

data("Atom")

Details

Size 800, Dimensions 3, stored in Atom$Data

Classes 2, stored in Atom$Cls

References

[Ultsch, 2004] Ultsch, A.: Strategies for an artificial life system to cluster high dimensional data, Abstracting and Synthesizing the Principles of Living Systems, GWAL-6, U. Brggemann, H. Schaub, and F. Detje, Eds, pp. 128-137. 2004.

[Thrun/Ultsch, 2020] Thrun, M. C., & Ultsch, A.: Clustering Benchmark Datasets Exploiting the Fundamental Clustering Problems, Data in Brief, Vol. 30(C), pp. 105501, doi:10.1016/j.dib.2020.105501, 2020.

Examples

data(Atom)
str(Atom)