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{
  "oof_5fold_cv": {
    "MAE_g_per_dL": 2.0855296613941983,
    "RMSE_g_per_dL": 2.7355139778699464,
    "R2": -0.05313964327289211,
    "n_patients": 250,
    "bland_altman_bias": 0.1579896528763917,
    "bland_altman_LoA_hi": 5.510647379051195,
    "bland_altman_LoA_lo": -5.194668073298412
  },
  "fold_metrics": [
    {
      "fold": 1,
      "n_train": 200,
      "n_test": 50,
      "MAE": 1.8331112124055713,
      "RMSE": 2.5013962539495886,
      "R2": 0.16225995486433664,
      "pls_n_components": 2,
      "svr_C": 1.0,
      "svr_gamma": "scale",
      "weight_pls": 0.35000000000000003
    },
    {
      "fold": 2,
      "n_train": 200,
      "n_test": 50,
      "MAE": 2.19584872088131,
      "RMSE": 2.701053921770809,
      "R2": -0.10894040171501884,
      "pls_n_components": 2,
      "svr_C": 2.0,
      "svr_gamma": "scale",
      "weight_pls": 0.15000000000000002
    },
    {
      "fold": 3,
      "n_train": 200,
      "n_test": 50,
      "MAE": 2.2227307671051624,
      "RMSE": 3.09121720984061,
      "R2": -0.044618629052950665,
      "pls_n_components": 1,
      "svr_C": 0.5,
      "svr_gamma": "0.01",
      "weight_pls": 0.05
    },
    {
      "fold": 4,
      "n_train": 200,
      "n_test": 50,
      "MAE": 2.2665057328879312,
      "RMSE": 2.789122512919339,
      "R2": -0.3010225932924402,
      "pls_n_components": 1,
      "svr_C": 2.0,
      "svr_gamma": "scale",
      "weight_pls": 0.1
    },
    {
      "fold": 5,
      "n_train": 200,
      "n_test": 50,
      "MAE": 1.909451873691015,
      "RMSE": 2.554932460464374,
      "R2": -0.042834328430729096,
      "pls_n_components": 1,
      "svr_C": 2.0,
      "svr_gamma": "0.01",
      "weight_pls": 0.0
    }
  ],
  "pipeline": "Shades-of-Gray -> ConvNeXt-Tiny (frozen, nail only) -> mean+std/patient -> standardise -> PLS + SVR(RBF) -> isotonic -> weighted blend"
}