1from transformers import pipeline
2
3# Load the PII detection pipeline
4ner = pipeline("ner", model="OpenMed/OpenMed-PII-Dutch-ClinicalLongformer-149M-v1", aggregation_strategy="simple")
5
6text = """
7Patiënt Jan Jansen (geboren 15-03-1985, BSN: 987654321) is vandaag gezien.
8Contact: jan.jansen@email.nl, Telefoon: +31 6 12345678.
9Adres: Herengracht 42, 1015 BN Amsterdam.
10"""
11
12entities = ner(text)
13for entity in entities:
14 print(f"{entity['entity_group']}: {entity['word']} (score: {entity['score']:.3f})")
1def redact_pii(text, entities, placeholder='[REDACTED]'):
2 """Replace detected PII with placeholders."""
3 # Sort entities by start position (descending) to preserve offsets
4 sorted_entities = sorted(entities, key=lambda x: x['start'], reverse=True)
5 redacted = text
6 for ent in sorted_entities:
7 redacted = redacted[:ent['start']] + f"[{ent['entity_group']}]" + redacted[ent['end']:]
8 return redacted
9
10# Apply de-identification
11redacted_text = redact_pii(text, entities)
12print(redacted_text)
1from transformers import AutoModelForTokenClassification, AutoTokenizer
2import torch
3
4model_name = "OpenMed/OpenMed-PII-Dutch-ClinicalLongformer-149M-v1"
5model = AutoModelForTokenClassification.from_pretrained(model_name)
6tokenizer = AutoTokenizer.from_pretrained(model_name)
7
8texts = [
9 "Patiënt Jan Jansen (geboren 15-03-1985, BSN: 987654321) is vandaag gezien.",
10 "Contact: jan.jansen@email.nl, Telefoon: +31 6 12345678.",
11]
12
13inputs = tokenizer(texts, return_tensors='pt', padding=True, truncation=True)
14with torch.no_grad():
15 outputs = model(**inputs)
16 predictions = torch.argmax(outputs.logits, dim=-1)
1@misc{openmed-pii-2026,
2 title = {OpenMed-PII-Dutch-ClinicalLongformer-149M-v1: Dutch PII Detection Model},
3 author = {OpenMed Science},
4 year = {2026},
5 publisher = {Hugging Face},
6 url = {https://huggingface.co/OpenMed/OpenMed-PII-Dutch-ClinicalLongformer-149M-v1}
7}
