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This paper is in the following e-collection/theme issue:

Development and Evaluation of Research Methods, Instruments and Tools (1323) Natural Language Processing (1277) Occupational Health and Ergonomics/Prevention at the Workplace (386) Happiness (45) Generative Language Models Including ChatGPT (1515) Occupational Health and Digital Safety (40)

Published on in Vol 10 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/99992, first published .
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Estimating Longitudinal Changes in Workday Happiness From Daily Report Texts Among Employees: Retrospective Feasibility Study

Estimating Longitudinal Changes in Workday Happiness From Daily Report Texts Among Employees: Retrospective Feasibility Study

Authors of this article:

Junko Hayashi1 Author Orcid Image ;   Kazuhiro Ito2 Author Orcid Image ;   Masae Manabe3 Author Orcid Image ;   Yasushi Watanabe4 Author Orcid Image ;   Masataka Nakayama4 Author Orcid Image ;   Yukiko Uchida4 Author Orcid Image ;   Shoko Wakamiya1 Author Orcid Image ;   Eiji Aramaki1 Author Orcid Image
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Junko Hayashi   1 , MEng ;   Kazuhiro Ito   2 , PhD ;   Masae Manabe   3 , MEd ;   Yasushi Watanabe   4 , PhD ;   Masataka Nakayama   4 , PhD ;   Yukiko Uchida   4 , PhD ;   Shoko Wakamiya   1 , PhD ;   Eiji Aramaki   1 , PhD

1 Department of Information Science, Nara Institute of Science and Technology, Ikoma, Nara, Japan

2 Department of Systems Innovation, School of Engineering, The University of Tokyo, Tokyo, Japan

3 Office of Research Acceleration, Kyoto University, Kyoto, Japan

4 Institute for the Future of Human Society, Kyoto University, Kyoto, Japan

Corresponding Author:

  • Eiji Aramaki, PhD
  • Department of Information Science
  • Nara Institute of Science and Technology
  • 8916-5 Takayama-cho
  • Ikoma, Nara 630-0192
  • Japan
  • Phone: 81 743-72-5250
  • Email: aramaki@is.naist.jp