Research Article
A Hierarchical Framework for Facial Age Estimation
Table 4
MAE of systems with different components.
| Method | MAE |
| Our system | 4.97 | System without ranking-KNN (replaced by KNN) | 5.76 | System without hierarchy framework (ranking-KNN) | 7.65 | System without hierarchy framework (SKNN) | 8.58 |
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