{
  "paper": "2605.18771",
  "adapter": "lwgr",
  "dataset": {
    "name": "MiniOneRec Office",
    "train_rows": 12000,
    "validation_users": 48,
    "test_users": 48,
    "items": 3459
  },
  "setup": {
    "model": "HuggingFaceTB/SmolLM2-135M",
    "seeds": [
      42,
      43,
      44
    ],
    "reference_steps": 180,
    "policy_steps": 100,
    "selected": "reference"
  },
  "test": {
    "reference": {
      "recall_at_5": 0.02777778,
      "ndcg_at_5": 0.011836,
      "recall_at_10": 0.04861111,
      "ndcg_at_10": 0.018532
    },
    "unconstrained": {
      "recall_at_5": 0.02083333,
      "ndcg_at_5": 0.009454,
      "recall_at_10": 0.04861111,
      "ndcg_at_10": 0.018806
    },
    "lwgr": {
      "recall_at_5": 0.02083333,
      "ndcg_at_5": 0.008668,
      "recall_at_10": 0.04861111,
      "ndcg_at_10": 0.017738
    }
  },
  "constraint": {
    "unconstrained_mean_degradation": 0.06587467,
    "lwgr_mean_degradation": 0.067425,
    "mean_final_lagrange_multiplier": 0.053366
  },
  "selected_relative_to_reference_percent": {
    "recall_at_10": 0.0,
    "ndcg_at_10": -4.28448
  },
  "conclusion": "Validation selects the reference. The primal-dual path executes but does not reduce degradation or improve held-out ranking.",
  "schema_version": 2,
  "manifest_ref": "reproduction:lwgr",
  "evaluation_protocol": {
    "tier": "l3_paper_pipeline",
    "seeds": [
      42,
      43,
      44
    ],
    "formal_comparison": true,
    "claim_policy": "formal multi-seed comparison"
  },
  "provenance": {
    "artifact_path": "docs/reproductions/2605.18771-lwgr/metrics/office-seeds42-44.json",
    "historical_migration": "historical-metrics-v2-2026-08-09",
    "original_code_commit": "not recorded",
    "dataset_fingerprint": "not recorded in historical artifact"
  }
}