| --- |
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| - config_name: hun_Latn |
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| - config_name: ind_Latn |
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| - config_name: ita_Latn |
| features: |
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| - config_name: pol_Latn |
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| configs: |
| - config_name: arb_Arab |
| data_files: |
| - split: train |
| path: arb_Arab/train-* |
| - split: validation |
| path: arb_Arab/validation-* |
| - split: test |
| path: arb_Arab/test-* |
| - config_name: ces_Latn |
| data_files: |
| - split: train |
| path: ces_Latn/train-* |
| - split: validation |
| path: ces_Latn/validation-* |
| - split: test |
| path: ces_Latn/test-* |
| - config_name: cmn_Hani |
| data_files: |
| - split: train |
| path: cmn_Hani/train-* |
| - split: validation |
| path: cmn_Hani/validation-* |
| - split: test |
| path: cmn_Hani/test-* |
| - config_name: dan_Latn |
| data_files: |
| - split: train |
| path: dan_Latn/train-* |
| - split: validation |
| path: dan_Latn/validation-* |
| - split: test |
| path: dan_Latn/test-* |
| - config_name: deu_Latn |
| data_files: |
| - split: train |
| path: deu_Latn/train-* |
| - split: validation |
| path: deu_Latn/validation-* |
| - split: test |
| path: deu_Latn/test-* |
| - config_name: ell_Grek |
| data_files: |
| - split: train |
| path: ell_Grek/train-* |
| - split: validation |
| path: ell_Grek/validation-* |
| - split: test |
| path: ell_Grek/test-* |
| - config_name: eng_Latn |
| data_files: |
| - split: train |
| path: eng_Latn/train-* |
| - split: validation |
| path: eng_Latn/validation-* |
| - split: test |
| path: eng_Latn/test-* |
| - config_name: fas_Arab |
| data_files: |
| - split: train |
| path: fas_Arab/train-* |
| - split: validation |
| path: fas_Arab/validation-* |
| - split: test |
| path: fas_Arab/test-* |
| - config_name: fra_Latn |
| data_files: |
| - split: train |
| path: fra_Latn/train-* |
| - split: validation |
| path: fra_Latn/validation-* |
| - split: test |
| path: fra_Latn/test-* |
| - config_name: hun_Latn |
| data_files: |
| - split: train |
| path: hun_Latn/train-* |
| - split: validation |
| path: hun_Latn/validation-* |
| - split: test |
| path: hun_Latn/test-* |
| - config_name: ind_Latn |
| data_files: |
| - split: train |
| path: ind_Latn/train-* |
| - split: validation |
| path: ind_Latn/validation-* |
| - split: test |
| path: ind_Latn/test-* |
| - config_name: ita_Latn |
| data_files: |
| - split: train |
| path: ita_Latn/train-* |
| - split: validation |
| path: ita_Latn/validation-* |
| - split: test |
| path: ita_Latn/test-* |
| - config_name: jpn_Jpan |
| data_files: |
| - split: train |
| path: jpn_Jpan/train-* |
| - split: validation |
| path: jpn_Jpan/validation-* |
| - split: test |
| path: jpn_Jpan/test-* |
| - config_name: nld_Latn |
| data_files: |
| - split: train |
| path: nld_Latn/train-* |
| - split: validation |
| path: nld_Latn/validation-* |
| - split: test |
| path: nld_Latn/test-* |
| - config_name: pol_Latn |
| data_files: |
| - split: train |
| path: pol_Latn/train-* |
| - split: validation |
| path: pol_Latn/validation-* |
| - split: test |
| path: pol_Latn/test-* |
| - config_name: por_Latn |
| data_files: |
| - split: train |
| path: por_Latn/train-* |
| - split: validation |
| path: por_Latn/validation-* |
| - split: test |
| path: por_Latn/test-* |
| - config_name: rus_Cyrl |
| data_files: |
| - split: train |
| path: rus_Cyrl/train-* |
| - split: validation |
| path: rus_Cyrl/validation-* |
| - split: test |
| path: rus_Cyrl/test-* |
| - config_name: spa_Latn |
| data_files: |
| - split: train |
| path: spa_Latn/train-* |
| - split: validation |
| path: spa_Latn/validation-* |
| - split: test |
| path: spa_Latn/test-* |
| - config_name: swe_Latn |
| data_files: |
| - split: train |
| path: swe_Latn/train-* |
| - split: validation |
| path: swe_Latn/validation-* |
| - split: test |
| path: swe_Latn/test-* |
| - config_name: tur_Latn |
| data_files: |
| - split: train |
| path: tur_Latn/train-* |
| - split: validation |
| path: tur_Latn/validation-* |
| - split: test |
| path: tur_Latn/test-* |
| - config_name: vie_Latn |
| data_files: |
| - split: train |
| path: vie_Latn/train-* |
| - split: validation |
| path: vie_Latn/validation-* |
| - split: test |
| path: vie_Latn/test-* |
| --- |
| # FineWeb2-IR |
|
|
| Multilingual IR training set built by generating search-style queries from FineWeb-Edu (English) and FineWeb2-HQ (20 additional languages) using the model [hotchpotch/query-crafter-multilingual](https://huggingface.com/hotchpotch/query-crafter-multilingual). Each of the **21 languages** below has roughly **3M** (query, text) pairs plus validation (2k) and test (30k) splits. Use it for multilingual IR training, reranking, and evaluation. |
|
|
| | Language | Subset ID | Train examples | |
| | --- | --- | --- | |
| | English | eng_Latn | 2,637,179 | |
| | Russian | rus_Cyrl | 2,779,122 | |
| | Chinese | cmn_Hani | 2,868,817 | |
| | German | deu_Latn | 2,816,638 | |
| | Spanish | spa_Latn | 2,770,292 | |
| | Japanese | jpn_Jpan | 2,887,206 | |
| | French | fra_Latn | 2,804,741 | |
| | Italian | ita_Latn | 2,747,784 | |
| | Portuguese | por_Latn | 2,763,318 | |
| | Polish | pol_Latn | 2,819,094 | |
| | Dutch | nld_Latn | 2,805,281 | |
| | Indonesian | ind_Latn | 2,742,114 | |
| | Turkish | tur_Latn | 2,802,936 | |
| | Czech | ces_Latn | 2,547,927 | |
| | Arabic | arb_Arab | 2,811,912 | |
| | Persian | fas_Arab | 2,105,428 | |
| | Hungarian | hun_Latn | 2,164,147 | |
| | Swedish | swe_Latn | 2,526,425 | |
| | Greek | ell_Grek | 2,225,423 | |
| | Danish | dan_Latn | 2,321,875 | |
| | Vietnamese | vie_Latn | 2,210,383 | |
| |
| |
| ## Dataset construction |
| 1. **Source corpora** |
| - English: [HuggingFaceFW/fineweb-edu](https://huggingface.co/datasets/HuggingFaceFW/fineweb-edu). |
| - Non-English: [HuggingFaceFW/fineweb-2](https://huggingface.co/datasets/HuggingFaceFW/fineweb-2) / FineWeb2-HQ. |
| 2. **Cleaning & filtering**: remove rows with missing text, cap text length, keep passages whose token count (Qwen3-1.7B tokenizer) falls in a per-language range. |
| 3. **Query generation**: |
| - Prompt format: `system: language=<lang>\ntype=<instruction>`, `user: <passage>`. |
| - Model: `hotchpotch/query-crafter-multilingual` via vLLM (T=0, top-p=0.95, max_new_tokens=128). |
| - Instruction types (7): `keywords`, `query`, `title`, `faq`, `summary`, `synonym_keywords`, `alt_query`. |
| - Rotation weights: 5× for the first five types, 1× for `synonym_keywords` and `alt_query` (so these two are rarer by design). |
| 4. **Post-filtering & split**: drop empty/"NONE" queries and queries ≥50 tokens (Greek cap 70); stratified split by `type`: validation 2,000, test 30,000, train = remainder. Columns kept: `query`, `text`, `type`, `query_token_count`, `text_token_count`, `id`, `original_row_id`, `date`, `dump`, `file_path`, `score`. |
| 5. **Deduplication (no-dup release)**: within each split, remove any row whose `query` or `text` duplicates a previously seen `query` or `text` (after `strip()`), ensuring all queries and documents are unique within the split. |
|
|
|
|
| ## Hard negatives (train/test) |
| - For each language subset, all texts are embedded with BGE-M3 and indexed for ANN search. |
| - Each query embedding retrieves the top 200 nearest texts **excluding the paired positive**; their IDs go to `hard_negatives` and cosine-similarity scores to `hard_negatives_score`. |
| - The `score` column is the original FineWeb quality score, **not** a query–text similarity score. |
|
|
|
|
| ## License |
| This dataset follows the licenses and usage terms of its original sources: [HuggingFaceFW/fineweb-edu](https://huggingface.co/datasets/HuggingFaceFW/fineweb-edu) and [HuggingFaceFW/fineweb-2](https://huggingface.co/datasets/HuggingFaceFW/fineweb-2) / FineWeb2-HQ. These corpora are based on Common Crawl. Use and redistribution should follow the upstream dataset cards, Common Crawl terms, and any downstream requirements imposed by those corpora. The generated query fields are provided as part of this derived retrieval dataset and should be used together with the source-corpus terms. |
|
|
