---
configs:
  - config_name: corpus
    data_files:
      - split: NanoClimateFEVER
        path: corpus/NanoClimateFEVER-*
      - split: NanoDBPedia
        path: corpus/NanoDBPedia-*
      - split: NanoFEVER
        path: corpus/NanoFEVER-*
      - split: NanoFiQA2018
        path: corpus/NanoFiQA2018-*
      - split: NanoHotpotQA
        path: corpus/NanoHotpotQA-*
      - split: NanoMSMARCO
        path: corpus/NanoMSMARCO-*
      - split: NanoNFCorpus
        path: corpus/NanoNFCorpus-*
      - split: NanoNQ
        path: corpus/NanoNQ-*
      - split: NanoQuoraRetrieval
        path: corpus/NanoQuoraRetrieval-*
      - split: NanoSCIDOCS
        path: corpus/NanoSCIDOCS-*
      - split: NanoArguAna
        path: corpus/NanoArguAna-*
      - split: NanoSciFact
        path: corpus/NanoSciFact-*
      - split: NanoTouche2020
        path: corpus/NanoTouche2020-*
  - config_name: queries
    data_files:
      - split: NanoClimateFEVER
        path: queries/NanoClimateFEVER-*
      - split: NanoDBPedia
        path: queries/NanoDBPedia-*
      - split: NanoFEVER
        path: queries/NanoFEVER-*
      - split: NanoFiQA2018
        path: queries/NanoFiQA2018-*
      - split: NanoHotpotQA
        path: queries/NanoHotpotQA-*
      - split: NanoMSMARCO
        path: queries/NanoMSMARCO-*
      - split: NanoNFCorpus
        path: queries/NanoNFCorpus-*
      - split: NanoNQ
        path: queries/NanoNQ-*
      - split: NanoQuoraRetrieval
        path: queries/NanoQuoraRetrieval-*
      - split: NanoSCIDOCS
        path: queries/NanoSCIDOCS-*
      - split: NanoArguAna
        path: queries/NanoArguAna-*
      - split: NanoSciFact
        path: queries/NanoSciFact-*
      - split: NanoTouche2020
        path: queries/NanoTouche2020-*
  - config_name: qrels
    data_files:
      - split: NanoClimateFEVER
        path: qrels/NanoClimateFEVER-*
      - split: NanoDBPedia
        path: qrels/NanoDBPedia-*
      - split: NanoFEVER
        path: qrels/NanoFEVER-*
      - split: NanoFiQA2018
        path: qrels/NanoFiQA2018-*
      - split: NanoHotpotQA
        path: qrels/NanoHotpotQA-*
      - split: NanoMSMARCO
        path: qrels/NanoMSMARCO-*
      - split: NanoNFCorpus
        path: qrels/NanoNFCorpus-*
      - split: NanoNQ
        path: qrels/NanoNQ-*
      - split: NanoQuoraRetrieval
        path: qrels/NanoQuoraRetrieval-*
      - split: NanoSCIDOCS
        path: qrels/NanoSCIDOCS-*
      - split: NanoArguAna
        path: qrels/NanoArguAna-*
      - split: NanoSciFact
        path: qrels/NanoSciFact-*
      - split: NanoTouche2020
        path: qrels/NanoTouche2020-*
  - config_name: bm25
    data_files:
      - split: NanoArguAna
        path: bm25/NanoArguAna-*
      - split: NanoClimateFEVER
        path: bm25/NanoClimateFEVER-*
      - split: NanoDBPedia
        path: bm25/NanoDBPedia-*
      - split: NanoFEVER
        path: bm25/NanoFEVER-*
      - split: NanoFiQA2018
        path: bm25/NanoFiQA2018-*
      - split: NanoHotpotQA
        path: bm25/NanoHotpotQA-*
      - split: NanoMSMARCO
        path: bm25/NanoMSMARCO-*
      - split: NanoNFCorpus
        path: bm25/NanoNFCorpus-*
      - split: NanoNQ
        path: bm25/NanoNQ-*
      - split: NanoQuoraRetrieval
        path: bm25/NanoQuoraRetrieval-*
      - split: NanoSCIDOCS
        path: bm25/NanoSCIDOCS-*
      - split: NanoSciFact
        path: bm25/NanoSciFact-*
      - split: NanoTouche2020
        path: bm25/NanoTouche2020-*
---

🚧 This dataset is currently under construction. Specifications may change.

# NanoBEIR-en (with bm25 subset)

A BM25-first retrieval subset derived from [sentence-transformers/NanoBEIR-en](https://huggingface.co/datasets/sentence-transformers/NanoBEIR-en) for reproducible NanoBEIR evaluation.

## What this dataset is

- Language: `en`
- BM25 top-k: `100`
- Number of evaluation splits: `13`
- This folder contains generated BM25 retrieval results and reproducibility metadata.

## Data structure

- `corpus`: `_id`, `text`
- `queries`: `_id`, `text`
- `qrels`: `query-id`, `corpus-id`, `score`
- `bm25`: `query-id`, `corpus-ids` (A bm25 subset is included for first-stage retrieval and reranking experiments.)

## BM25 baseline scores

| Scope | nDCG@10 | nDCG@100 |
|---|---:|---:|
| 13-split average | 0.5736 | 0.6082 |

## Selected BM25 algorithm

| Item | Value |
|---|---|
| Mode | `nltk_stem` |
| Details | NLTK snowball stemming |

## Subset names

- Split names: `NanoArguAna`, `NanoClimateFEVER`, `NanoDBPedia`, `NanoFEVER`, `NanoFiQA2018`, `NanoHotpotQA`, `NanoMSMARCO`, `NanoNFCorpus`, `NanoNQ`, `NanoQuoraRetrieval`, `NanoSCIDOCS`, `NanoSciFact`, `NanoTouche2020`
- Config names in this output folder: `bm25`

## BM25 split-level baseline (`nDCG`)

| Split | nDCG@10 | nDCG@100 |
|---|---:|---:|
| `NanoArguAna` | 0.4276 | 0.4953 |
| `NanoClimateFEVER` | 0.3285 | 0.3831 |
| `NanoDBPedia` | 0.6140 | 0.6694 |
| `NanoFEVER` | 0.8215 | 0.8336 |
| `NanoFiQA2018` | 0.4118 | 0.4557 |
| `NanoHotpotQA` | 0.8464 | 0.8608 |
| `NanoMSMARCO` | 0.5404 | 0.5968 |
| `NanoNFCorpus` | 0.3417 | 0.2454 |
| `NanoNQ` | 0.5200 | 0.5546 |
| `NanoQuoraRetrieval` | 0.8314 | 0.8551 |
| `NanoSCIDOCS` | 0.3298 | 0.4416 |
| `NanoSciFact` | 0.7359 | 0.7541 |
| `NanoTouche2020` | 0.7082 | 0.7611 |

## Upstream source

- Original dataset: [sentence-transformers/NanoBEIR-en](https://huggingface.co/datasets/sentence-transformers/NanoBEIR-en)

## License

Same as the upstream dataset. Follow upstream licensing and attribution requirements.