{
  "version": "v0.2-phase2b",
  "label": "cand_gte_ml_base",
  "date": "2026-05-23",
  "snapshot": {
    "doc_id_max": 25180,
    "chunk_id_max": 56526,
    "documents_n": 21365,
    "chunks_n": 30605
  },
  "eval_set": {
    "total_cases": 51,
    "scored_cases": 46,
    "failure_expected_cases": 5
  },
  "model_config": {
    "embedding": "BAAI/bge-m3 (production, 고정)",
    "reranker": "Alibaba-NLP/gte-multilingual-reranker-base",
    "reranker_params": "305M",
    "reranker_context": 8192,
    "reranker_license": "Apache 2.0",
    "search_mode": "hybrid",
    "rerank_enabled": "server_default",
    "embedding_backend": "baseline",
    "reranker_backend": "cand_gte_ml_base",
    "endpoint": "http://rerank-cand-gte-ml-base:80/rerank",
    "plan": "round-2-review-mighty-starfish.md v2.1 (Phase 2B)"
  },
  "overall": {
    "n": 46,
    "graded_ndcg_at_10": 0.604,
    "graded_recall_at_10_t2": 0.709,
    "graded_recall_at_10_t3": 0.783,
    "latency_p50_ms": 345,
    "latency_p95_ms": 1460,
    "failure_correct": "0/5"
  },
  "by_category": {
    "english_only":  { "n":  9, "recall_at_10": 0.78, "ndcg_at_10": 0.68, "graded_ndcg_at_10": 0.72 },
    "exam":          { "n":  7, "recall_at_10": 0.64, "ndcg_at_10": 0.53, "graded_ndcg_at_10": 0.62 },
    "korean_only":   { "n":  9, "recall_at_10": 0.50, "ndcg_at_10": 0.39, "graded_ndcg_at_10": 0.41 },
    "mixed":         { "n": 10, "recall_at_10": 0.42, "ndcg_at_10": 0.35, "graded_ndcg_at_10": 0.38 },
    "standards":     { "n": 11, "recall_at_10": 0.91, "ndcg_at_10": 0.84, "graded_ndcg_at_10": 0.86 }
  },
  "by_language": {
    "en":    { "n":  9, "recall_at_10": 0.78, "graded_ndcg_at_10": 0.72 },
    "ko":    { "n": 27, "recall_at_10": 0.71, "graded_ndcg_at_10": 0.65 },
    "mixed": { "n": 10, "recall_at_10": 0.42, "graded_ndcg_at_10": 0.38 }
  },
  "raw_csv": "reports/v0_2_phase2b_gte_ml_base_2026-05-23.csv",
  "delta_vs_baseline": {
    "graded_ndcg_at_10": -0.055,
    "mixed": -0.01,
    "korean_only": -0.10,
    "standards": -0.01,
    "english_only": -0.06,
    "exam": -0.12,
    "latency_p50_ms": -109
  }
}
