{
  "symbols": {
    "SPY": "SPY",
    "VIX": "VIXY",
    "TLT": "TLT",
    "USO": "USO"
  },
  "fractions": {
    "train": 0.7,
    "validation": 0.15,
    "test": 0.15
  },
  "model": {
    "n_estimators": 300,
    "max_depth": 1,
    "learning_rate": 0.01,
    "subsample": 0.7,
    "colsample_bytree": 0.7,
    "early_stopping_rounds": 20,
    "random_state": 42,
    "eval_metric": "logloss"
  }
}