---
task_categories:
- translation
language:
- en
- ru
tags:
- medical
- health
license: cc-by-nc-sa-4.0
size_categories:
- 1K<n<10K
---
# English–Russian Medical Parallel Dataset (Health-Only)

This dataset contains English–Russian sentence pairs drawn exclusively from
medical-domain corpora. It is intended for training, evaluating, and
fine-tuning neural machine translation (NMT) models on health-related
terminology and sentences.

The data includes cleaned and aligned English–Russian parallel sentences sourced
from WikiHealth and TICO-19, both widely used in medical-domain machine
translation research.

---

## Dataset Structure

The repository includes three CSV files:
 - `train.csv`
 - `val.csv`
 - `test.csv`

## Split Sizes

| Split | Rows |
|-------|------|
| Train | 6,244 |
| Validation | 400 |
| Test | 400 |

## Data Sources

This health-only dataset is composed of samples from:

### **1. WikiHealth (Health Instruction Dataset)**  

A multilingual biomedical dataset consisting of health-related instructions and
explanations aligned across languages.

> Huang, J., et al. **“WikiHowToImprove: Instructional Text for Healthcare Applications.”**  
> *NeurIPS 2021 Datasets and Benchmarks Track.*

### **2. TICO-19 (Translation Initiative for Covid-19)**  

A multilingual parallel corpus developed during the COVID-19 pandemic to support
machine translation for public health and crisis communication.

> Anastasopoulos, A., et al. **“TICO-19: The Translation Initiative for Covid-19.”**  
> *arXiv preprint arXiv:2007.01788, 2020.*

Both corpora were cleaned, stripped of markup, and normalized prior to
construction of the final train–val–test splits.

## Loading the Dataset

You can load the dataset using the Hugging Face `datasets` library:

```python
from datasets import load_dataset

ds = load_dataset("SirEthanK/en-ru-health-only-dataset")

train_ds = ds["train"]
val_ds   = ds["validation"]
test_ds  = ds["test"]
```

## Preprocessing
The data preprocessing procedure consisted of:
 - dropping NaNs, stripping whitespace, and collapsing internal spaces
 - normalizing Unicode data (NFC format)
 - converting text to lowercase
 - standardizing punctuation
 - filtering by script
 - de-duplication
 - filtering by length and length ratio
 - stripping HTML and dropping code-like lines
 - some heuristic tuning was applied to remove garbage or corrupted rows
 - some manual fixing of translations was done to fix almost correct translations
## License

This dataset is released under the **CC BY-NC-SA 4.0** license.

It contains processed and cleaned subsets of:
- **WikiHealth**, derived from WikiHow data licensed under CC BY-NC-SA 3.0  
- **TICO-19**, licensed under CC BY 4.0  

Because the dataset incorporates WikiHow-derived material, the resulting dataset
must be distributed under a compatible non-commercial, share-alike license.