Add arXiv paper link and citation

README.md

@@ -1,6 +1,8 @@
 # ELDOR Data
 
 - Public dataset name: `ELDOR`
+- Paper: [ELDOR: A Dataset and Benchmark for Illegal Gold Mining in the Amazon Rainforest](https://arxiv.org/abs/2605.15397)
+- PDF: https://arxiv.org/pdf/2605.15397
 - Local dataset root: `GoldMDD/data`
 - Output folders: `train/image`, `train/label`, `val/image`, `val/label`, `test/image`, `test/label` (copied from `GoldMining/Data/Orthomosaic` and `GoldMining/Data/Label`).
 - Source folders: `Drone_Orthomosaic_V1/Orthomosaic_org` and `Drone_Orthomosaic_V1/Just_labels`
@@ -8,6 +10,17 @@
 - Canonical labels: 14 semantic classes (`1..14`) plus `0=Background` after class merging in ELDOR.
 - Split rule in this dataset: train/val/test assignment is listed in the `Split` column of the spatial metadata table.
 
+## Citation
+
+```bibtex
+@article{cui2026eldor,
+  title={ELDOR: A Dataset and Benchmark for Illegal Gold Mining in the Amazon Rainforest},
+  author={Cui, Kangning and Bohara, Surendra and Prasai, Suraj and Shao, Zishan and Tang, Wei and Pillaca, Martin and Flores, Edwin and Yang, Zhen and Larsen, Gregory and Dethier, Evan and Lutz, David and Morel, Jean-Michel and Silman, Miles and Pauca, Victor and Yang, Fan},
+  journal={arXiv preprint arXiv:2605.15397},
+  year={2026}
+}
+```
+
 ## Spatial metadata table (source files + aligned output)
 
 | Site | Ortho file | Label source file | CRS | Ortho size (W x H px) | Label size (W x H px) | Ortho res (m/px x,y) | Label res (m/px x,y) | Ortho lon range | Ortho lat range | Label lon range | Label lat range | Output size (W x H px) | Foreground area (ha) | Acquisition date | Split |