Table 2 Performed external validating measures of spectral clustering on the labeled ground truth data DB1
From: Semi-supervised clustering of fractionated electrograms for electroanatomical atrial mapping
| (a) Performance using \({\varXi }\) | ||
|---|---|---|
| Acc. | Spec. | Sens. |
| 47.55 | 93.47 | 84.31 |
| 53.34 | 76.00 | |
| 85.05 | 11.48 | |
| 100.0 | 1.88 | |
| (b) Performance using \({\varXi }^{*}\) | ||
|---|---|---|
| Acc. | Spec. | Sens. |
| 77.62 | 98.91 | 71.24 |
| 85.87 | 78.66 | |
| 88.61 | 84.45 | |
| 97.07 | 75.47 | |
| (c) Confusion matrix using \({\varXi }^{*}\) | ||||
|---|---|---|---|---|
| \(\#0\) | \(\#1\) | \(\#2\) | \(\#3\) | |
| \(\#0\) | 113 | 36 | 1 | 3 |
| \(\#1\) | 1 | 66 | 8 | 0 |
| \(\#2\) | 0 | 18 | 115 | 15 |
| \(\#3\) | 0 | 0 | 14 | 39 |
| (d) Accuracy of different sets | ||
|---|---|---|
| Morphology-based | Non-linear | Raw waveform |
| 69.46 % | 70.86 % | 36.6 % |