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---
license: cc-by-nc-sa-4.0
pretty_name: "Nordisk Familjebok Headword Classified Matched Linked Dataset"
language:
- sv
content_types:
- biographical
- geographical
- scientific
- historical
- cultural
- technical
size_categories:
- 100K<n<1M
task_categories:
- text-classification
libraries:
- datasets
- pandas
- polars
- croissant
modalities:
- text
formats:
- jsonl
date_published: "2025-01-15"
version: "1.0.0"
cite_as: "@misc{albinandersson2024massive,
    title = {Nordisk Familjebok Headword Classified Matched Linked Dataset},
    author = {Albin Andersson and Salam Jonasson and Fredrik Wastring},
    year = {2025},
    publisher = {Hugging Face},
    url = {https://huggingface.co/datasets/albinandersson/Nordisk-Familjebok-Headword-Classified-Matched-Linked}
}"
---
# Dataset Name: Nordisk Familjebok Headword Classified Matched Linked Dataset
## Description
This dataset contains entries from all editions of Nordisk Familjebok with enriched information including extracted headwords, entity type classification, cross-edition matching, and Wikidata linking. Each entry is classified into one of three categories (person, location, or other), matched with corresponding entries across different editions (E1-E4), and linked to Wikidata entities where possible.

## Dataset Statistics
- Total entries: 418,221
- Source: All editions of Nordisk Familjebok (E1, E2, E3 and E4)
- Entity types:
 - Person entries: 87,905
 - Location entries: 91,621
 - Other entries: 238,695
- Cross-edition matches: 41,644 (20,732 person entries and 20,912 location entries)
- Wikidata links: 10,964

## Data Fields
- entry_id: Unique identifier for each entry (e.g., "E1_137")
- headword: Extracted headword from the text
- definition: Full text content of the entry
- type: Entry classification (0: other, 1: location, 2: person)
- edition: Source edition (E1, E2, E3, or E4)
- E1_match: Matching entry ID in edition 1 (if available)
- E2_match: Matching entry ID in edition 2 (if available)
- E3_match: Matching entry ID in edition 3 (if available)
- E4_match: Matching entry ID in edition 4 (if available)
- QID: Wikidata QID for linked entities (when available)

## Example Entry
```json
{
 "entry_id": "E1_137",
 "headword": "Abel",
 "definition": "Abel, konung i Danmark 1250-52...",
 "type": 2,
 "edition": "E1",
 "E1_match": "",
 "E2_match": "E2_203",
 "E3_match": "E3_158",
 "E4_match": "E4_154",
 "QID": "Q27932"
}
```

## Licensing
This dataset is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0).

## Citation
If you use this dataset, please cite it as follows:

```bibtex
@misc{albinandersson2025,
    title = {Nordisk Familjebok Headword Classified Matched Linked Dataset},
    author = {Albin Andersson and Salam Jonasson and Fredrik Wastring},
    year = {2025},
    publisher = {Hugging Face},
    url = {https://huggingface.co/datasets/albinandersson/Nordisk-Familjebok-Headword-Classified-Matched-Linked}
}
```