Upload rounds/round_21/hospital_NVIDIA_round_21_metadata.json with huggingface_hub

rounds/round_21/hospital_NVIDIA_round_21_metadata.json

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+{
+    "client_id": "hospital_NVIDIA",
+    "client_repo": "ChisDong/Client_NVIDIA_IID",
+    "scenario": "iid",
+    "round": 21,
+    "status": "completed",
+    "train_samples": 2283,
+    "val_samples": 384,
+    "samples": 2283,
+    "local_epochs": 1,
+    "base_global_model": "global_model_round_21.safetensors",
+    "created_at": "2026-05-21T03:54:06.588356",
+    "train_loss": 0.5958162310222784,
+    "train_accuracy": 0.8186596583442839,
+    "train_sensitivity_macro": 0.7835499720213549,
+    "train_specificity_macro": 0.9623720766061629,
+    "train_precision_macro": 0.7111874492131627,
+    "train_f1_macro": 0.7427778008541246,
+    "train_auc_macro_ovr": 0.9694434977825316,
+    "val_loss": 0.4831628407118842,
+    "val_accuracy": 0.84375,
+    "val_sensitivity_macro": 0.6536705666891697,
+    "val_specificity_macro": 0.968057497353756,
+    "val_precision_macro": 0.5689522309123638,
+    "val_f1_macro": 0.6034926074631729,
+    "val_auc_macro_ovr": 0.9629041202795181,
+    "delta_file": "hospital_NVIDIA_round_21_delta.safetensors"
+}