Add metadata.json

metadata.json

@@ -0,0 +1,17 @@
+{
+  "READY": true,
+  "name": "Gum1_s",
+  "task": "regression",
+  "cat_idx": [],
+  "num_samples": 267,
+  "num_features": 167,
+  "description": "PTR-ToF-MS analysis of chewing gum base material (267 samples, 167 peaks, 27 batches of technical replicates). Regression: predicted value is the percentage concentration of component 1 in the base material formulation. S/P=1.60. Features are standard-scaled (StandardScaler). 5-fold cross-validation splits are batch-aware: all samples sharing the same measurement batch (IDs field) are kept together in the same fold to prevent data leakage from technical replicates and batch effects.",
+  "source": "On the use of TabPFN on mass spectrometry analysis of volatile organic compounds. Scientific Reports (2025). GitHub: https://github.com/CIFASIS/TabPFN-VOCS",
+  "label": "Metabolomics",
+  "sub_labels": [
+    "mass spectrometry",
+    "volatile organic compounds"
+  ],
+  "force_scale": true,
+  "split_strategy": "cv"
+}