| --- |
| pretty_name: Document-Level Word Alignment |
| license: other |
| license_name: mixed-per-subset |
| license_link: LICENSE.md |
| language: |
| - en |
| - fr |
| - ro |
| - ja |
| - zh |
| - gr |
| - la |
| - cs |
| multilinguality: multilingual |
| task_categories: |
| - token-classification |
| task_ids: [] |
| size_categories: |
| - 1K<n<10K |
| configs: |
| - config_name: en-fr |
| data_files: |
| - split: dev |
| path: documents/en-fr/dev.json |
| - split: test |
| path: documents/en-fr/test.json |
|
|
| - config_name: en-ro |
| data_files: |
| - split: dev |
| path: documents/en-ro/dev.json |
| - split: test |
| path: documents/en-ro/test.json |
|
|
| - config_name: en-ja |
| data_files: |
| - split: dev |
| path: documents/en-ja/dev.json |
| - split: test |
| path: documents/en-ja/test.json |
|
|
| - config_name: en-zh |
| data_files: |
| - split: dev |
| path: documents/en-zh/dev.json |
| - split: test |
| path: documents/en-zh/test.json |
|
|
| - config_name: la-gr |
| data_files: |
| - split: dev |
| path: documents/la-gr/dev.json |
| - split: test |
| path: documents/la-gr/test.json |
|
|
| - config_name: en-cz |
| data_files: |
| - split: test |
| path: documents/en-cz/test.json |
| --- |
| |
| # Document-Level Word Alignment |
|
|
| Document-level word alignment data for six language pairs — English–French (en-fr), English–Romanian (en-ro), English–Japanese (en-ja), English–Chinese (en-zh), Latin–Ancient Greek (la-gr), and English–Czech (en-cz) — reconstructed from existing sentence-level, human-annotated word alignment gold standards. |
|
|
| Document-level examples are built by grouping sentence-level annotations by document membership and sentence order; the dataset does not contain new human annotation beyond what already exists in the source corpora (see [Sources & Licensing](#sources--licensing)). |
| This dataset accompanies the paper [*"Scaling Unsupervised Word Alignment to Documents with Structural Constraints"*](https://arxiv.org/abs/2608.21023). |
|
|
|
|
| ## Dataset Structure |
|
|
| Each configuration corresponds to a language pair, e.g. `en-ja`. Each row is one document pair. Splits are `dev` and `test`, except `en-cz`, which is test-only. |
|
|
| ### Data Fields |
|
|
| | Field | Type | Description | |
| |---|---|---| |
| | `sent_id` | string | Unique identifier for the document | |
| | `doc_id` | string | Identifier of the parent document | |
| | `lang` | string | Language pair code, e.g. `"en-ja"` | |
| | `text_a` | string | Source-language text (whitespace-tokenized) | |
| | `text_b` | string | Target-language text (whitespace-tokenized) | |
| | `sure_align` | string | Space-separated `i-j` sure alignment links (0-indexed word positions, `i` in `text_a`, `j` in `text_b`) | |
| | `possible_align` | string | Space-separated `i-j` possible alignment links | |
|
|
| ### Example |
|
|
| ```json |
| {"sent_id": "trial", "doc_id": "trial", "lang": "en-fr", |
| "text_a": "source document text ...", "text_b": "target document text ...", |
| "sure_align": "0-0 3-5", "possible_align": "1-1"} |
| ``` |
|
|
| ### Dataset Statistics (dev / test) |
|
|
| | Lang pair | Docs (dev/test) | Mean doc length (chars) | |
| |---|---:|---:| |
| | en-fr | 1 / 1 | 22,408 | |
| | en-ro | 1 / 10 | 2,901 | |
| | en-ja | 8 / 7 | 5,516 | |
| | en-zh | 47 / 52 | 646 | |
| | la-gr | 1 / 1 | 5,837 | |
| | en-cz | — / 33 | 6,318 | |
|
|
| Lengths are target-side (`text_b`) character counts. |
|
|
| ## Sources & Licensing |
|
|
| This is a derived/reconstructed dataset. Each language pair originates from a separate, independently licensed source. |
|
|
| | Lang pair | Source | License | |
| |---|---|---| |
| | en-ja | [Neubig (2011)](https://www.phontron.com/kftt) | CC BY-SA 3.0 | |
| | la-gr | [Yousef et al. (2022)](https://aclanthology.org/2022.lrec-1.634/) | CC BY-SA 4.0 | |
| | en-fr, en-ro | [Mihalcea & Pedersen (2003)](https://aclanthology.org/W03-0301/) | Not specified by the source | |
| | en-zh | [Liu and Sun (2015)](https://nlp.csai.tsinghua.edu.cn/~ly/systems/TsinghuaAligner/TsinghuaAligner.html) | Not specified by the source | |
| | en-cz | [Mareček (2011)](https://ufal.mff.cuni.cz/czech-english-manual-word-alignment) | CC BY-SA 4.0 | |
|
|
| ## Dataset Creation |
|
|
| Document-level examples were constructed by concatenating sentence-level source/target texts within a document in their original order and re-indexing `sure_align`/`possible_align` accordingly. |
|
|
| ## Citation |
|
|
| If you use this dataset, please cite both this work and the original source(s) listed in [Sources & Licensing](#sources--licensing) for the language pair(s) you use. |
|
|
| ```bibtex |
| @misc{wastl2026scalingunsupervisedwordalignment, |
| title={Scaling Unsupervised Word Alignment to Documents via Structural Constraints}, |
| author={Michelle Wastl and Jannis Vamvas and Rico Sennrich}, |
| year={2026}, |
| eprint={2608.21023}, |
| archivePrefix={arXiv}, |
| primaryClass={cs.CL}, |
| url={https://arxiv.org/abs/2608.21023}, |
| } |
| ``` |
|
|
