---
configs:
- config_name: corpus
  data_files:
  - split: bg
    path: corpus_bg.jsonl
  - split: en
    path: corpus_en.jsonl
- config_name: queries
  data_files:
  - split: bg
    path: queries_bg.jsonl
  - split: en
    path: queries_en.jsonl
- config_name: qrels
  data_files:
  - split: train
    path: qrels/train.jsonl
  - split: dev
    path: qrels/dev.jsonl
  - split: test
    path: qrels/test.jsonl
task_categories:
- text-retrieval
language:
- bg
- en
pretty_name: bemir
license: cc-by-4.0
tags:
- medical
size_categories:
- 1K<n<10K
---

# BEMIR Dataset

**Bulgarian-English Medical Information Retrieval**

## 📊 Dataset Overview

| Metric | Count | Details |
|--------|-------|---------|
| **Documents** | 7,266 | 3,633 BG + 3,633 EN |
| **Queries** | 6,474 | 3,237 BG + 3,237 EN |
| **Relevance Pairs** | 134,294 | Train: 110,575, Dev: 11,385, Test: 12,334 |

## 📁 Files & Sizes

| File | Size | Records | Description |
|------|------|---------|-------------|
| `corpus_bg.jsonl` | 11 MB | 3,633 | Bulgarian documents |
| `corpus_en.jsonl` | 5.7 MB | 3,633 | English documents |
| `queries_bg.jsonl` | 315 KB | 3,237 | Bulgarian queries |
| `queries_en.jsonl` | 218 KB | 3,237 | English queries |
| `qrels/train.jsonl` | 7.2 MB | 110,575 | Training relevance |
| `qrels/dev.jsonl` | 756 KB | 11,385 | Development relevance |
| `qrels/test.jsonl` | 819 KB | 12,334 | Test relevance |

## 📝 Content Statistics

### Documents
| Language | Count | Avg Length | Sample |
|----------|-------|------------|---------|
| Bulgarian | 3,633 | 1,594 chars (289 words) | Скорошни проучвания предполагат, че статини, утвърдена група лекарства за превенция на сърдечно-съдо... |
| English | 3,633 | 1,496 chars (272 words) | Recent studies have suggested that statins, an established drug group in the prevention of cardiovas... |

### Queries
| Language | Count | Avg Length | Examples |
|----------|-------|------------|----------|
| Bulgarian | 3,237 | 28 chars (5 words) | • Клетките на рака на гърдата се хранят с холестерол<br>• Диета за лечение на астма и екзема |
| English | 3,237 | 21 chars (3 words) | • Breast Cancer Cells Feed on Cholesterol<br>• Using Diet to Treat Asthma and Eczema |

## 🎯 Relevance Judgments

| Split | Query-Doc Pairs | Unique Queries | Unique Documents | Avg Pairs/Query |
|-------|-----------------|----------------|------------------|-----------------|
| **Train** | 110,575 | 2,590 | 3,588 | 42.7 |
| **Dev** | 11,385 | 324 | 3,119 | 35.1 |
| **Test** | 12,334 | 323 | 3,128 | 38.2 |

## 🔧 Data Format

```json
// Corpus
{"id": "0406436662", "title": "Document title...", "text": "Document content...", "lang": "en"}

// Queries  
{"id": "df3aceec36", "text": "Query text...", "lang": "en"}

// QRels
{"query-id": "df3aceec36", "corpus-id": "0406436662", "score": "1"}
```

## 📚 Citation

If you use this dataset in your research, please cite:

```bibtex
@dataset{emanuilov2025bemir,
  title={BEMIR: Bulgarian-English Medical Information Retrieval Dataset},
  author={Simeon Emanuilov},
  year={2025},
  publisher={Hugging Face},
  url={https://huggingface.co/datasets/llm-bg/bemir}
}
```