confidence_bin_epoch_stats.json

{
  "task": "confidence_bin",
  "epoch_stats": [
    {
      "boundary_index": 0,
      "boundary": "low|>medium"
    },
    {
      "boundary_index": 1,
      "boundary": "medium|>high"
    }
  ],
  "training_summary": {
    "actual_epochs": 1,
    "best_epoch": 1,
    "early_stopped": false,
    "boundary_count": 2
  },
  "boundaries": [
    {
      "boundary": "low|>medium",
      "index": 0,
      "positive_rows": 16000,
      "negative_rows": 8000,
      "calibration": {
        "method": "sigmoid",
        "split": "eval",
        "rows": 3000,
        "pre_ece": 0.01198595582677442,
        "post_ece": 0.0008781016022264554,
        "pre_accuracy": 1.0,
        "post_accuracy": 1.0,
        "accuracy_delta": 0.0
      },
      "isotonic": {
        "rows": 3000,
        "pre_mean": 0.6666663343311852,
        "post_mean": 0.6666666666666666
      }
    },
    {
      "boundary": "medium|>high",
      "index": 1,
      "positive_rows": 8000,
      "negative_rows": 16000,
      "calibration": {
        "method": "sigmoid",
        "split": "eval",
        "rows": 3000,
        "pre_ece": 0.015159181746049357,
        "post_ece": 0.0007613706727828129,
        "pre_accuracy": 1.0,
        "post_accuracy": 1.0,
        "accuracy_delta": 0.0
      },
      "isotonic": {
        "rows": 3000,
        "pre_mean": 0.3333336656697009,
        "post_mean": 0.3333333333333333
      }
    }
  ]
}