Adding an entropy-based boundary weighting term and a density normalization term to Class-Balanced loss improves rare MEP component segmentation on Industrial3D (55.74% mIoU, reducer 0 to 21.12% IoU) versus CB+Focal baselines.
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Resolving Primitive-Sharing Ambiguity in Long-Tailed TLS-Based Industrial MEP Point Cloud Segmentation via Spatial Context Constraints
Adding an entropy-based boundary weighting term and a density normalization term to Class-Balanced loss improves rare MEP component segmentation on Industrial3D (55.74% mIoU, reducer 0 to 21.12% IoU) versus CB+Focal baselines.