{
  "paper": {
    "arxiv_id": "2608.03382",
    "title": "LLM-Derived Priors for Thompson Sampling",
    "url": "https://arxiv.org/abs/2608.03382",
    "organization": "NAVER WEBTOON"
  },
  "dataset": {
    "name": "MovieLens-1M",
    "users": 220,
    "items": 120
  },
  "setup": {
    "seed": 42
  },
  "variants": {
    "uniform thompson prior": {
      "ctr": 0.08479545454545455,
      "cold_start_ctr": 0.0819090909090909
    },
    "llm semantic prior": {
      "ctr": 0.09348863636363636,
      "cold_start_ctr": 0.0910909090909091
    }
  },
  "relative": {
    "ctr_percent": 10.251943178772434,
    "cold_start_ctr_percent": 11.209766925638194
  },
  "mechanism": {
    "prior_strength": 40,
    "online_rounds": 40,
    "top_k": 10
  },
  "paper_results": {
    "gender_prior_overall_ctr_percent": 1.48,
    "gender_prior_cold_10_49_ctr_percent": 9.51,
    "content_prior_overall_ctr_percent": -5.68
  },
  "scope": "实际运行分群 Beta prior 与在线 Thompson 更新；语义 prior 由 MovieLens genre 特征代理，且论文整体 Gender CTR 提升不显著。",
  "schema_version": 2,
  "manifest_ref": "reproduction:llm-ts-prior",
  "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/2608.03382-llm-ts-prior/metrics/public-seed42.json",
    "historical_migration": "historical-metrics-v2-2026-08-09",
    "original_code_commit": "not recorded",
    "dataset_fingerprint": "not recorded in historical artifact"
  }
}