Table 3 Characteristics of artificial datasets for classification used for hyperparameter sensitivity analysis and for comparisons
From: Extreme learning machine versus classical feedforward network
Dataset | No of classes | No of samples | No of features | Minority class size | Majority class size |
|---|---|---|---|---|---|
Nested hyperspheres | 2 | 2000 | 2–1000 | 50% | 50% |
Hypercube vertices | 2 | 2000 | 2–10 | \(\sim\)50% | \(\sim\)50% |
Intertwined spirals 2D | 2 | 2000 | 2 | 50% | 50% |
Intertwined spirals 3D | 2 | 2000 | 3 | 50% | 50% |