Table 1 The correlation coefficient and entropy value of two data blocks
From: Model updating mechanism of concept drift detection in data stream based on classifier pool
Time | Correlation coefficient | Entropy value | System model |
|---|---|---|---|
0, 1 | 0.9284 | 0.0995 | No concept drift |
0, 2 | 0.9089 | 0.1253 | No concept drift |
0, 5 | 0.8755 | 0.1680 | No concept drift |
0, 6 | 0.7081 | 0.3526 | Concept drift, accumulating |
0, 7 | 0.7953 | 0.2627 | Concept drift, accumulating |
0, 8 | 0.5283 | 0.4864 | Concept drift, accumulating |
0, 10 | 0.6445 | 0.4085 | Concept drift, accumulating |
10, 13 | 0.9939 | 0.0087 | No concept drift |
3, 21 | 0.1573 | 0.4197 | Concept drift |