---
{
  "configs": [
    {
      "config_name": "corpus",
      "data_files": [
        {
          "split": "miracl_ru",
          "path": "corpus/miracl_ru-00000-of-00001.parquet"
        },
        {
          "split": "ria_news",
          "path": "corpus/ria_news-00000-of-00001.parquet"
        },
        {
          "split": "ru_bq",
          "path": "corpus/ru_bq-00000-of-00001.parquet"
        }
      ]
    },
    {
      "config_name": "queries",
      "data_files": [
        {
          "split": "miracl_ru",
          "path": "queries/miracl_ru-00000-of-00001.parquet"
        },
        {
          "split": "ria_news",
          "path": "queries/ria_news-00000-of-00001.parquet"
        },
        {
          "split": "ru_bq",
          "path": "queries/ru_bq-00000-of-00001.parquet"
        }
      ],
      "default": true
    },
    {
      "config_name": "qrels",
      "data_files": [
        {
          "split": "miracl_ru",
          "path": "qrels/miracl_ru-00000-of-00001.parquet"
        },
        {
          "split": "ria_news",
          "path": "qrels/ria_news-00000-of-00001.parquet"
        },
        {
          "split": "ru_bq",
          "path": "qrels/ru_bq-00000-of-00001.parquet"
        }
      ]
    },
    {
      "config_name": "bm25",
      "data_files": [
        {
          "split": "miracl_ru",
          "path": "bm25/miracl_ru-00000-of-00001.parquet"
        },
        {
          "split": "ria_news",
          "path": "bm25/ria_news-00000-of-00001.parquet"
        },
        {
          "split": "ru_bq",
          "path": "bm25/ru_bq-00000-of-00001.parquet"
        }
      ]
    }
  ],
  "tags": [
    "information-retrieval",
    "retrieval",
    "nano",
    "bm25",
    "hakari-bench"
  ]
}
---

# NanoRuMTEB

This is a private regenerated Nano-style retrieval dataset for HAKARI-Bench.

## Source Links

- [mteb/MIRACLRetrievalHardNegatives](https://huggingface.co/datasets/mteb/MIRACLRetrievalHardNegatives)
- [mteb/RiaNewsRetrieval_test_top_250_only_w_correct-v2](https://huggingface.co/datasets/mteb/RiaNewsRetrieval_test_top_250_only_w_correct-v2)
- [ai-forever/rubq-retrieval](https://huggingface.co/datasets/ai-forever/rubq-retrieval)

## Data Layout

The dataset uses four Hugging Face Datasets configs: `corpus`, `queries`, `qrels`, and `bm25`. Each config contains the same Hub split names. Hub split names replace unsupported characters in the original Nano split names with underscores; the original split names are listed below and stored in `metadata/{hub_split}.json`.

## Split Mapping

| Hub split | Original Nano split | Source task | Source dataset | Queries | Corpus | Qrels |
|---|---|---|---|---:|---:|---:|
| miracl_ru | miracl-ru | MIRACLRetrievalHardNegatives.v2 | [mteb/MIRACLRetrievalHardNegatives](https://huggingface.co/datasets/mteb/MIRACLRetrievalHardNegatives) | 200 | 10000 | 579 |
| ria_news | ria-news | RiaNewsRetrievalHardNegatives.v2 | [mteb/RiaNewsRetrieval_test_top_250_only_w_correct-v2](https://huggingface.co/datasets/mteb/RiaNewsRetrieval_test_top_250_only_w_correct-v2) | 200 | 10000 | 200 |
| ru_bq | ru-bq | RuBQRetrieval | [ai-forever/rubq-retrieval](https://huggingface.co/datasets/ai-forever/rubq-retrieval) | 200 | 10000 | 334 |

## License

NanoRuMTEB is a derived dataset. Users must comply with the licenses, terms, and attribution requirements of the upstream MTEB task sources and their original datasets.