{
  "schema_version": 2,
  "manifest_ref": "reproduction:autolr",
  "method": "autolr-checkpoint",
  "dataset": {
    "name": "Amazon Beauty 2014 5-core",
    "users": 1000,
    "items": 2000,
    "split": "per-user chronological last-two; catalog selected from training counts only",
    "sha256": {
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      "reviews_Beauty_5.json.gz": "e5925ec99023f1dc9c7d3dff7ef34cfeacd40d1b981b5525e1e4ba9c8abc18fe"
    }
  },
  "seeds": [
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    43,
    44
  ],
  "checkpoint": {
    "model_id": "Qwen/Qwen3-4B-Instruct-2507",
    "revision": "cdbee75f17c01a7cc42f958dc650907174af0554"
  },
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  "rounds": [
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        "learning_rate": 0.001,
        "adapter": false
      },
      "validation_ndcg_at_10": 0.028541742865183666,
      "verdict": "rejected"
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    {
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        "dimensions": 16,
        "learning_rate": 0.0001,
        "adapter": true
      },
      "validation_ndcg_at_10": 0.002345687824858001,
      "verdict": "rejected"
    },
    {
      "parameters": {
        "dimensions": 64,
        "learning_rate": 0.0001,
        "adapter": false
      },
      "validation_ndcg_at_10": 0.02690921234547888,
      "verdict": "rejected"
    }
  ],
  "final": {
    "incumbent": "baseline",
    "test_hit_at_10": 0.046,
    "test_ndcg_at_10": 0.025303288455369926
  },
  "execution": {
    "proposal_source": "frozen public checkpoint",
    "independent_review_calls_per_round": 2,
    "one_step_backprop_verification": true,
    "online_authorized": false
  },
  "evaluation_protocol": {
    "tier": "l2_execution_evidence",
    "formal_comparison": false,
    "claim_policy": "three-round checkpoint-proposed bounded search; all candidates were negative and baseline remained incumbent",
    "seeds": [
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      43,
      44
    ]
  },
  "provenance": {
    "artifact_path": "docs/reproductions/2609.04871-autolr/metrics/amazon-beauty-checkpoint-seeds42-44.json",
    "dataset_fingerprint": "sha256:b6f86bcc1a7be984600b23ff4b77672bfd8ca15ac3fb07af77911c2499b94d7a"
  }
}