{
  "paper": "2602.10226",
  "adapter": "self-evolving-rec",
  "fidelity": "core_mechanism",
  "dataset": "MovieLens-100K",
  "setup": {
    "users": 932,
    "items": 1682,
    "seeds": [
      42,
      43,
      44
    ],
    "llm_agent": "HuggingFaceTB/SmolLM2-135M-Instruct",
    "generations_per_seed": 4,
    "search_space_size": 25,
    "promoted_candidates": [
      "adagrad-gate0-reward1-lr0.015",
      "human_adagrad",
      "human_adagrad"
    ]
  },
  "results": {
    "human_baseline": {
      "hit_at_10": 0.0833333333,
      "hit_at_10_std": 0.0043215472,
      "ndcg_at_10": 0.0399026401,
      "ndcg_at_10_std": 0.0017557126
    },
    "llm_agent_promoted": {
      "hit_at_10": 0.0844062947,
      "hit_at_10_std": 0.0053528718,
      "ndcg_at_10": 0.0409264736,
      "ndcg_at_10_std": 0.0027637144
    }
  },
  "relative_ndcg_change_percent": 2.565829,
  "schema_version": 2,
  "manifest_ref": "reproduction:self-evolving-rec",
  "evaluation_protocol": {
    "tier": "l2_public_dataset",
    "seeds": [
      42,
      43,
      44
    ],
    "formal_comparison": true,
    "claim_policy": "formal multi-seed comparison"
  },
  "provenance": {
    "artifact_path": "docs/reproductions/2602.10226-self-evolving-rec/metrics/movielens-100k-seeds42-44.json",
    "historical_migration": "historical-metrics-v2-2026-08-09",
    "original_code_commit": "not recorded",
    "dataset_fingerprint": "not recorded in historical artifact"
  }
}