{
  "name": "bashkir-russian-wikipedia-parallel",
  "dump_date": "2026-08-01",
  "license": "CC BY-SA 4.0",
  "license_url": "https://creativecommons.org/licenses/by-sa/4.0/",
  "configs": {
    "cleaned": {
      "file": "cleaned/data.parquet",
      "version": "v6",
      "rows": 72007,
      "linked_article_pairs": 34566,
      "columns": ["ba_title", "ru_title", "section", "ba", "ru", "ba_sentence_index", "ru_sentence_index"]
    },
    "precleaned": {
      "file": "precleaned/data.parquet",
      "version": "v1",
      "rows": 91949,
      "columns": ["ba_title", "ru_title", "section", "ba", "ru"]
    },
    "scored": {
      "file": "scored/data.parquet",
      "version": "v7",
      "rows": 72007,
      "columns": ["ba_title", "ru_title", "section", "ba", "ru", "ba_sentence_index", "ru_sentence_index", "laser_cos", "laser_margin", "laser_margin_xling"],
      "scores": {
        "method": "LASER margin-based bitext scoring (Artetxe & Schwenk 2018)",
        "encoder_ba": "laser3-bak_Cyrl.v1",
        "encoder_ru": "laser2",
        "embedding_dim": 1024,
        "knn_k": 4,
        "note": "laser_margin uses same-language kNN, laser_margin_xling uses cross-lingual kNN and is the recommended LASER filter score"
      }
    },
    "filtered": {
      "file": "filtered/data.parquet",
      "version": "v8",
      "rows": 69706,
      "columns": ["ba_title", "ru_title", "section", "ba", "ru", "ba_sentence_index", "ru_sentence_index", "laser_cos", "laser_margin", "laser_margin_xling", "labse_cos", "labse_margin_xling"],
      "filter": {
        "name": "two_voice_both_low",
        "rule": "drop if laser_margin_xling < 0.876 AND labse_margin_xling < 0.723 (bottom 5% of both scorers)",
        "rows_dropped": 2301,
        "encoders": ["laser3-bak_Cyrl.v1 + laser2 (LASER3/LASER2, dim 1024)", "sentence-transformers/LaBSE (dim 768, fp16)"],
        "design": "pairs removed only when two independent encoders agree on rejection; all score columns retained for auditability"
      }
    }
  }
}