{
  "version": "v6.7-rank-lambdarank-mvp",
  "feature_version": "v3.4",
  "objective": "lambdarank",
  "metric": "ndcg@5,10",
  "ndcg_at_5": 0.5108501630463596,
  "ndcg_at_10": 0.577072484777789,
  "spearman": 0.5896180660523218,
  "spearman_baseline_regression": 0.573016131374212,
  "spearman_ratio_vs_baseline": 1.0289728923307881,
  "best_iter": 29,
  "train_seconds": 1.4682528972625732,
  "n_train": 254234,
  "n_val": 73785,
  "top10_features": [
    {
      "name": "dist_to_grid_lower",
      "gain": 26718.906676471233
    },
    {
      "name": "amp_x_grid",
      "gain": 5439.311601281166
    },
    {
      "name": "cross_freq_x_bb",
      "gain": 4232.088328957558
    },
    {
      "name": "amp_x_grid_vol",
      "gain": 3015.4479908943176
    },
    {
      "name": "dist_to_grid_upper",
      "gain": 2406.65438079834
    },
    {
      "name": "ln_float_mv",
      "gain": 1248.8392915129662
    },
    {
      "name": "avg_daily_amp",
      "gain": 794.0413353443146
    },
    {
      "name": "amount_mean_20d",
      "gain": 670.1584417819977
    },
    {
      "name": "vol_decay_x_dist_lower",
      "gain": 659.5440436601639
    },
    {
      "name": "vol_decay_x_grid_balance",
      "gain": 653.8379725217819
    }
  ]
}