src/fine_tuning/data/model_metadata.json

{
  "current_model_status": "fine_tuned",
  "current_version": "v0",
  "last_fine_tuned": "2025-06-13T11:26:25.760088",
  "base_model_name": "cross-encoder/ms-marco-MiniLM-L-6-v2",
  "fine_tuning_config": {
    "min_training_samples": 1000,
    "training_interval_hours": 0,
    "embedding_batch_size": 100
  },
  "base_model_updates": [
    {
      "timestamp": "2025-06-13T11:26:40.625310",
      "validation_score": -0.2677331790328026,
      "previous_backup": "cross-encoder\\ms-marco-MiniLM-L-6-v2_backup_20250613_112640"
    }
  ],
  "last_updated": "2025-06-13T11:26:40.626311",
  "ensemble_metadata": {
    "num_models": 5,
    "fold_val_losses": [
      0.2787470519542694,
      0.2814807593822479,
      0.2964612990617752,
      0.2982477396726608,
      0.2677331790328026
    ],
    "ensemble_weights": [
      0.2,
      0.2,
      0.2,
      0.2,
      0.2
    ],
    "best_model_path": "src\\fine_tuning\\data\\models\\fine_tuned\\reranker_v2\\ensemble_4",
    "best_overall_val_loss": 0.2677331790328026
  }
}