Table 4 Evaluation metrics.
From: Vectorized building rooftop prints of the Qinghai-Tibetan Plateau and its neighboring regions
Metric | Description |
|---|---|
True Positive (TP) | Correctly extracted building roof plots |
False Positive (FP) | Background misclassified as a sample of a building roof |
True Negative (TN) | Parcels correctly categorized as background |
False Negative (FN) | Roofs of buildings misclassified as background |
Overall Accuracy (OA, %) | (TP + TN)/(TP + FP + TN + FN) Proportion of correctly recognized buildings and background |
User Accuracy/Precision (%) | TP/(TP + FP) Proportion of real buildings in the results |
Producer Accuracy/Recall (%) | TP/(TP + FN) Proportion of extracted buildings in validation data |
F1 Score (%) | 2 × TP/(2 × TP + FP + FN) Weighted average of the precision and the recall |
