De-Identification of German medical admission notes
Medical texts are a vast resource for medical and computational research. In contrast to newswire or wikipedia texts medical texts need to be de-identified before making them accessible to a wider NLP research community. We created a prototype for German medical text de-identification and named enti...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Kapitel/Artikel Konferenzschrift |
| Sprache: | Englisch |
| Veröffentlicht: |
[2018]
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| In: |
German medical data sciences
Year: 2018, Jahrgang: 253, Pages: 165-169 |
| DOI: | 10.3233/978-1-61499-896-9-165 |
| Online-Zugang: | Resolving-System: https://doi.org/10.3233/978-1-61499-896-9-165
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| Verfasserangaben: | Phillip Richter-Pechanski, Stefan Riezler and Christoph Dieterich |
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| 520 | |a Medical texts are a vast resource for medical and computational research. In contrast to newswire or wikipedia texts medical texts need to be de-identified before making them accessible to a wider NLP research community. We created a prototype for German medical text de-identification and named entity recognition using a three-step approach. First, we used well known rule-based models based on regular expressions and gazetteers, second we used a spelling variant detector based on Levenshtein distance, exploiting the fact that the medical texts contain semi-structured headers including sensible personal data, and third we trained a named entity recognition model on out of domain data to add statistical capabilities to our prototype. Using a baseline based on regular expressions and gazetteers we could improve F2-score from 78% to 85% for de-identification. Our prototype is a first step for further research on German medical text de-identification and could show that using spelling variant detection and out of domain trained statistical models can improve de-identification performance significantly. | ||
| 650 | 4 | |a anonymization | |
| 650 | 4 | |a Data Anonymization | |
| 650 | 4 | |a De-identification | |
| 650 | 4 | |a Electronic Health Records | |
| 650 | 4 | |a Germany | |
| 650 | 4 | |a medical admission notes | |
| 650 | 4 | |a named entity recognition | |
| 650 | 4 | |a Natural Language Processing | |
| 650 | 4 | |a Patient Admission | |
| 650 | 4 | |a personal health information | |
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