{
  "paper": {
    "title": "TubiFM"
  },
  "dataset": {
    "name": "MovieLens 100K",
    "users": 220,
    "items": 360
  },
  "setup": {
    "adapter": "tubifm",
    "same_split_and_candidates": true
  },
  "baseline": {
    "name": "shared transition + content baseline",
    "hit_at_10": 0.10909090909090909,
    "ndcg_at_10": 0.05400546778896325,
    "fresh_hit_at_10": 0.031746031746031744,
    "head_share_at_10": 0.23772727272727273
  },
  "method": {
    "name": "TubiFM",
    "hit_at_10": 0.10454545454545454,
    "ndcg_at_10": 0.05425111705030348,
    "fresh_hit_at_10": 0.031746031746031744,
    "head_share_at_10": 0.18045454545454545
  },
  "relative": {
    "hit_at_10_percent": -4.166666666666668,
    "ndcg_at_10_percent": 0.45485998251167736,
    "fresh_hit_at_10_percent": 0.0,
    "head_share_at_10_percent": -24.091778202676867
  },
  "stages": {
    "mechanism": {
      "mode": "tubifm",
      "fitted": true,
      "state_keys": [
        "align",
        "domain_eye",
        "fitted",
        "semantic"
      ]
    },
    "validation_selected_alpha": 0.30000000000000004,
    "validation": {
      "hit_at_10": 0.15,
      "ndcg_at_10": 0.07701761779169404,
      "fresh_hit_at_10": 0.10526315789473684,
      "head_share_at_10": 0.1890909090909091
    }
  },
  "paper_results": {
    "search_tvt_percent": 3.9,
    "carousel_tvt_percent": 0.3,
    "item_tvt_percent": 0.14,
    "p99_latency_ms": 200.0
  },
  "scope": "在 MovieLens-100K 固定全库候选、相同切分和 seed 上执行论文核心机制；公司私有特征、生产基础模型与在线流量不可公开，论文 A/B 数字仅作原文引用。",
  "schema_version": 2,
  "manifest_ref": "reproduction:tubifm",
  "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/2605.23702-tubifm/metrics/public-seed42.json",
    "historical_migration": "historical-metrics-v2-2026-08-09",
    "original_code_commit": "not recorded",
    "dataset_fingerprint": "not recorded in historical artifact"
  }
}