Add dataset card

README.md

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+---
+license: mit
+tags:
+  - kepco
+  - power-lines
+  - polyline
+  - yolino
+---
+
+# Yolino-KEPCO
+
+KEPCO (Korea Electric Power Corporation) aerial powerline dataset in YOLinO format for cross-domain evaluation.
+
+## Layout
+
+```
+images/{train,val}/*.png
+labels/{train,val}/*.npy
+```
+
+Built with dual-crop 1024² tiling via `scripts/prepare_kepco_yolino.py`.
+
+## Splits
+
+| Split | Images |
+|-------|--------|
+| train | 146 |
+| val   |  36 |
+
+## Related checkpoints
+
+| Experiment | File | Role |
+|------------|------|------|
+| `exp23_finetune_kepco` | `best_model.pth` | Geometry fine-tune |
+| `exp71_gnn_kepco` | `best_model.pth` | GNN assembly |
+
+Weights: [V8heart/CAPSTONE-gnn-weights](https://huggingface.co/V8heart/CAPSTONE-gnn-weights)
+
+## Download
+
+```bash
+hf download V8heart/Yolino-KEPCO \
+  --repo-type dataset \
+  --local-dir ./Yolino_KEPCO
+```