Clustering Nursing Sentences - Comparing Three Sentence Embedding Methods.

Journal: Studies in health technology and informatics
Published Date:

Abstract

In health sciences, high-quality text embeddings may augment qualitative data analysis of large amounts of text by enabling, e.g., searching and clustering of health information. This study aimed to evaluate three different sentence-level embedding methods in clustering sentences in nursing narratives from individual patients' hospital care episodes. Two of these embeddings are generated from language models based on the BERT framework, and the third on the Sent2Vec method. These embedding methods were used to cluster sentences from 20 patient care episodes and the results were manually evaluated. Findings suggest that the best clusters were produced by the embeddings from a BERT model fine-tuned for the proxy task of predicting subject headings for nursing text.

Authors

  • Hans Moen
    Turku NLP Group, Department of Future Technologies, University of Turku, Finland.
  • Henry Suhonen
    Department of Nursing Science, University of Turku, Finland.
  • Sanna Salanterä
    Nursing Science, University of Turku, and Turku University Hospital, Turku, Finland.
  • Tapio Salakoski
    TurkuNLP group, Department of Future Technologies, University of Turku, Turku, Finland.
  • Laura-Maria Peltonen
    Nursing Science, University of Turku, and Turku University Hospital, Turku, Finland.