Research Article
VIASCKDE Index: A Novel Internal Cluster Validity Index for Arbitrary-Shaped Clusters Based on the Kernel Density Estimation
| Dataset | Type | # of Features | # of data | # of classes | Reference |
| Half-kernel | Synthetic | 2 | 1000 | 2 | [45] | Two spirals | Synthetic | 2 | 312 | 3 | [45] | Outlier | Synthetic | 2 | 700 | 4 | [45] | Corners | Synthetic | 2 | 2000 | 4 | [45] | Cluster in cluster | Synthetic | 2 | 1012 | 2 | [45] | Crescent full moon | Synthetic | 2 | 1000 | 2 | [45] | Moon | Synthetic | 2 | 514 | 4 | [45] | Face | Synthetic | 2 | 322 | 4 | [46] | Wave | Synthetic | 2 | 287 | 2 | [46] | Aggregation | Synthetic | 2 | 788 | 7 | [47] | Zelnik1 | Synthetic | 2 | 622 | 4 | [48] | Zelnik5 | Synthetic | 2 | 512 | 4 | [48] | Xclara | Synthetic | 2 | 3000 | 3 | [48] | Banana | Synthetic | 2 | 4811 | 2 | [48] | D2c2sc13 | Synthetic | 2 | 588 | 13 | [48] | 2sp2glob | Synthetic | 2 | 999 | 3 | [48] | Cure-t1-200n | Synthetic | 2 | 2000 | 5 | [48] | Thyroid | Real | 4 | 215 | 2 | [49] | Fisher iris | Real | 4 | 150 | 3 | [49] | Breast cancer | Real | 8 | 699 | 2 | [49] |
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