{
  "dataset": "MovieLens 100K",
  "seed": 42,
  "users": 180,
  "items": 300,
  "baseline": {
    "name": "single-path TIGER-style GR",
    "hit_at_10": 0.027777777777777776,
    "ndcg_at_10": 0.011472443817059487,
    "head_share_at_10": 0.1461111111111111
  },
  "method": {
    "name": "BARGE ICA + HPR + DPD",
    "hit_at_10": 0.044444444444444446,
    "ndcg_at_10": 0.02131242364911662,
    "head_share_at_10": 0.38722222222222225
  },
  "relative": {
    "hit_at_10_percent": 60.000000000000014,
    "ndcg_at_10_percent": 85.77056457164875,
    "head_share_at_10_percent": 165.01901140684413
  },
  "osq": {
    "initial_loss": 0.05969402454793453,
    "final_loss": 0.019470608606934548,
    "orthogonality_error": 2.980232238769531e-07
  },
  "schema_version": 2,
  "manifest_ref": "reproduction:barge",
  "evaluation_protocol": {
    "tier": "l2_public_dataset",
    "seeds": [
      42
    ],
    "formal_comparison": false,
    "claim_policy": "single/few-seed smoke result; do not claim a stable improvement"
  },
  "provenance": {
    "artifact_path": "docs/reproductions/2607.21028-barge/metrics/movielens-100k-seed42.json",
    "historical_migration": "historical-metrics-v2-2026-08-09",
    "original_code_commit": "not recorded",
    "dataset_fingerprint": "not recorded in historical artifact"
  }
}