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OpenMed-PII-Korean-NomicMed-Large-395M-v1

Detects 54 personal identifier types in Korean clinical and biomedical text

De-identify text (PII/PHI)Personal identifiers (PII/PHI)KoreanMedium · 396Mapache-2.0

What it does

This token classification model detects 54 types of personal identifiers, including names, social security numbers, and medical record numbers, in Korean text. It reports an F1 score of 0.771 on the AI4Privacy and synthetic Korean PII test set.

Best for

  • De-identifying Korean clinical notes
  • Redacting personal data in biomedical records
  • Anonymizing Korean text for research

What it detects (54 labels)

  • Account name
  • Age
  • Amount
  • Bank account
  • BIC code
  • Bitcoin address
  • Building number
  • City
  • County
  • Credit card number
  • Credit card issuer
  • Currency
  • Currency code
  • Currency name
  • Currency symbol
  • Card CVV
  • Date
  • Date of birth
  • Email
  • Ethereum address
  • Eye color
  • First name
  • Gender
  • GPS coordinates
  • Height
  • IBAN
  • IMEI
  • IP address
  • Job department
  • Job title
  • Last name
  • Litecoin address
  • MAC address
  • Masked number
  • Middle name
  • Occupation
  • Ordinal direction
  • Organization
  • Password
  • Phone
  • PIN
  • Prefix
  • Secondary address
  • Sex
  • Social security number
  • State
  • Street
  • Time
  • URL
  • User agent
  • Username
  • Vehicle identification number
  • Vehicle registration
  • ZIP code

Quality

Benchmark AI4Privacy + Synthetic Korean PII · all models on this benchmark
F10.771
Precision0.758
Recall0.785
Accuracy0.897
SourceReported by the authors (test_results.json in the repository)

This model was trained on a combination of: - AI4Privacy PII Masking 200K: Multilingual base dataset (200K records across 8 languages) - NVIDIA Nemotron-PII: Seed dataset for synthetic data generation - Synthetic Korean Data: ~25K high-quality samples generated with locale-specific formatting (주민등록번호 format, +82 phones, Korean names, ₩ currency)

Use it

pip install transformers torch

from transformers import pipeline
ner = pipeline("token-classification", model="OpenMed/OpenMed-PII-Korean-NomicMed-Large-395M-v1", aggregation_strategy="simple")
print(ner("Patient prescribed 10 mg aspirin for hypertension."))
Android, browser, CPU (ONNX) build
pip install --upgrade "openmed[onnx-runtime]"

from openmed import OnnxModel
model = OnnxModel.from_pretrained("OpenMed/OpenMed-PII-Korean-NomicMed-Large-395M-v1-onnx-android")
for entity in model("The patient started imatinib after the consultation."):
    print(entity.to_dict())
Limitations stated in the model card

Important: This model is intended as an assistive tool, not a replacement for human review. - False Negatives: Some PII may not be detected; always verify critical applications - Context Sensitivity: Performance may vary with domain-specific terminology - Language: Optimized for Korean text; may not perform well on other languages

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