---
license: cc-by-nc-sa-4.0
language:
  - rm
configs:
  - config_name: rm-surmiran
    data_files:
      - split: train
        path: data/rm-surmiran/train.jsonl
      - split: validation
        path: data/rm-surmiran/validation.jsonl
      - split: test
        path: data/rm-surmiran/test.jsonl
  - config_name: rm-sursilv
    data_files:
      - split: train
        path: data/rm-sursilv/train.jsonl
      - split: validation
        path: data/rm-sursilv/validation.jsonl
      - split: test
        path: data/rm-sursilv/test.jsonl
      - split: no_surmiran
        path: data/rm-sursilv/no_surmiran.jsonl
  - config_name: rm-puter
    data_files:
      - split: train
        path: data/rm-puter/train.jsonl
      - split: validation
        path: data/rm-puter/validation.jsonl
      - split: test
        path: data/rm-puter/test.jsonl
      - split: no_surmiran
        path: data/rm-puter/no_surmiran.jsonl
  - config_name: rm-sutsilv
    data_files:
      - split: train
        path: data/rm-sutsilv/train.jsonl
      - split: validation
        path: data/rm-sutsilv/validation.jsonl
      - split: test
        path: data/rm-sutsilv/test.jsonl
      - split: no_surmiran
        path: data/rm-sutsilv/no_surmiran.jsonl
  - config_name: rm-vallader
    data_files:
      - split: train
        path: data/rm-vallader/train.jsonl
      - split: validation
        path: data/rm-vallader/validation.jsonl
      - split: test
        path: data/rm-vallader/test.jsonl
      - split: no_surmiran
        path: data/rm-vallader/no_surmiran.jsonl
---

## General Information

Release of the Mediomatix corpus, prepared by UZH and PHGR, to be used for research purposes only. 

In mediomatix-raw, we release the full _Mediomatix_ schoolbooks' text for each idiom. The data points are unaligned. See [here](https://huggingface.co/datasets/ZurichNLP/mediomatix) for the mulit-parallel, aligned _Mediomatix_ corpus. 

We use the following Romansh idiom codes as subsets in the dataset:
  - Sursilvan: rm-sursilv
  - Sutsilvan: rm-sutsilv
  - Surmiran: rm-surmiran
  - Puter: rm-puter
  - Vallader: rm-vallader

The splits in each subset are:
  - train: Text from year 2 and 3 schoolbooks
  - validation: Text from year 4 schoolbooks
  - test: Text from year 5 schoolbooks
  - no_surmiran: Text from years 6-9; available for all idioms except rm-surmiran

Each data point contains the following columns:
  - CmsElementID: An id referring to which CMS element a text was extracted from.
  - segmentID: A unique id for each row; differentiates between segments split apart from the same CMS element.
  - text: The extracted plain text from within an HTML segment
  - html: The extracted text, including any HTML markup
  - chapter: The name of the chapter from which a text was extracted
  - book: A code referring to the grade, volume, and type of school book 


Book names are encoded in the "book" column as follows:
  - The first digit refers to the school year of the book
  - The next refers to the book volums for that school year
  - The two letter code indicates whether the segment comes from the student workbook ("wb") or teacher's commentary ("tc")
  - Example: Book "5.1_tc" refers to teacher's commentary for Volume 1 of the year 5 schoolbook.

## How to Use

The subset for a specific Romansh idiom must be specified when loading the datset:

```python
from datasets import load_dataset

sursilv = load_dataset("ZurichNLP/mediomatix-raw","rm-sursilv")

# Load Train set:

train_set = sursilv['train']

# Load Validation set:

val_set = sursilv['validation']

# Load Test set:

test_set = sursilv['test']

# Load no-rm-surmiran if the subset is not rm-surmiran
no_surm = sursilv['no_surmiran']
```

## Citation
```bibtex
@inproceedings{hopton-etal-2026-mediomatix,
    title = "The Mediomatix Corpus: Parallel Data for {R}omansh Language Varieties via Comparable Schoolbooks",
    author = {Hopton, Zachary William  and
      Vamvas, Jannis  and
      B{\"u}chler, Andrin  and
      Rutkiewicz, Anna  and
      Cathomas, Rico  and
      Sennrich, Rico},
    editor = "Demberg, Vera  and
      Inui, Kentaro  and
      Marquez, Llu{\'i}s",
    booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {EACL} 2026",
    month = mar,
    year = "2026",
    address = "Rabat, Morocco",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.findings-eacl.16/",
    pages = "290--306",
    ISBN = "979-8-89176-386-9"
}
```

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