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Performance Improvement of a Natural Language Processing Tool for Extracting Patient Narratives Related to Medical States From Japanese Pharmaceutical Care Records by Increasing the Amount of Training Data: Natural Language Processing Analysis and Validation Study

Performance Improvement of a Natural Language Processing Tool for Extracting Patient Narratives Related to Medical States From Japanese Pharmaceutical Care Records by Increasing the Amount of Training Data: Natural Language Processing Analysis and Validation Study

Similarly, Aramaki et al [26] used Japanese case reports as training data to develop a system for extracting a variety of symptoms. The F1-scores of their system were 0.87 for NER and 0.63 for NER with positive-negative classification [26], both of which were lower than the scores achieved by our system.

Yukiko Ohno, Tohru Aomori, Tomohiro Nishiyama, Riri Kato, Reina Fujiki, Haruki Ishikawa, Keisuke Kiyomiya, Minae Isawa, Mayumi Mochizuki, Eiji Aramaki, Hisakazu Ohtani

JMIR Med Inform 2025;13:e68863

Using the Natural Language Processing System Medical Named Entity Recognition-Japanese to Analyze Pharmaceutical Care Records: Natural Language Processing Analysis

Using the Natural Language Processing System Medical Named Entity Recognition-Japanese to Analyze Pharmaceutical Care Records: Natural Language Processing Analysis

Among Japanese NLP studies that focused on medical issues, the study by Imai et al [4] developed a system that performs extraction and P-N classification of malignant findings from radiological reports such as computed tomography reports and magnetic resonance imaging reports; Ma et al [5] built a system that performs extraction and P-N classification of abnormal findings from discharge summaries, progress notes, and nursery notes; and Aramaki et al [6] developed a system that performs extraction and P-N classification

Yukiko Ohno, Riri Kato, Haruki Ishikawa, Tomohiro Nishiyama, Minae Isawa, Mayumi Mochizuki, Eiji Aramaki, Tohru Aomori

JMIR Form Res 2024;8:e55798