대한한의학회지 (The Journal of Korean Medicine)

  • 제45권3호
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  • Pages.193-210
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  • 2024
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  • 1010-0695(pISSN)
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  • 2288-3339(eISSN)
대한한의학회 (The Society of Korean Medicine)
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자연어 처리에 기반한 사상체질 치험례의 텍스트 마이닝 분석과 체질 진단을 위한 머신러닝 모델 선정

Application of text-mining technique and machine-learning model with clinical text data obtained from case reports for Sasang constitution diagnosis: a feasibility study

  • 김진석 (상지대학교 한의과대학 한의학과) ;
  • 박소현 (상지대학교 한의과대학 한의학과) ;
  • 정로아 (상지대학교 한의과대학 한의학과) ;
  • 이은수 (상지대학교 한의과대학 한의학과) ;
  • 김윤서 (상지대학교 한의과대학 한의학과) ;
  • 성현동 (서강대학교 공과대학 컴퓨터공학과) ;
  • 유준상 (상지대학교 한의과대학 사상체질의학교실)
  • Jinseok Kim (Department of Korean Medicine, College of Korean Medicine, Sangji University ) ;
  • So-hyun Park (Department of Korean Medicine, College of Korean Medicine, Sangji University ) ;
  • Roa Jeong (Department of Korean Medicine, College of Korean Medicine, Sangji University ) ;
  • Eunsu Lee (Department of Korean Medicine, College of Korean Medicine, Sangji University ) ;
  • Yunseo Kim (Department of Korean Medicine, College of Korean Medicine, Sangji University ) ;
  • Hyundong Sung (Sogang Univ. Computer Science & Engineering ) ;
  • Jun-sang Yu (Department of Sasang Constitutional Medicine, College of Korean Medicine, Sangji University )
  • 투고 : 2024.08.02
  • 심사 : 2024.08.28
  • 발행 : 2024.09.01
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초록

Objectives: We analyzed Sasang constitution case reports using text mining to derive network analysis results and designed a classification algorithm using machine learning to select a model suitable for classifying Sasang constitution based on text data. Methods: Case reports on Sasang constitution published from January 1, 2000, to December 31, 2022, were searched. As a result, 343 papers were selected, yielding 454 cases. Extracted texts were pretreated and tokenized with the Python-based KoNLPy package. Each morpheme was vectorized using TF-IDF values. Word cloud visualization and centrality analysis identified keywords mainly used for classifying Sasang constitution in clinical practice. To select the most suitable classification model for diagnosing Sasang constitution, the performance of five models-XGBoost, LightGBM, SVC, Logistic Regression, and Random Forest Classifier-was evaluated using accuracy and F1-Score. Results: Through word cloud visualization and centrality analysis, specific keywords for each constitution were identified. Logistic regression showed the highest accuracy (0.839416), while random forest classifier showed the lowest (0.773723). Based on F1-Score, XGBoost scored the highest (0.739811), and random forest classifier scored the lowest (0.643421). Conclusions: This is the first study to analyze constitution classification by applying text mining and machine learning to case reports, providing a concrete research model for follow-up research. The keywords selected through text mining were confirmed to effectively reflect the characteristics of each Sasang constitution type. Based on text data from case reports, the most suitable machine learning models for diagnosing Sasang constitution are logistic regression and XGBoost.

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