Formalization of Medical Diagnostic Rules

  • Shusaku TsumotoEmail author
  • Shoji Hirano
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9437)


This paper dicusses formalization of medical diagnostic rules which is closely related with rough set rule model. The important point is that medical diagnostic reasoning is characterized by focusing mechanism, composed of screening and differential diagnosis, which corresponds to upper approximation and lower approximation of a target concept. Furthermore, this paper focuses on detection of complications, which can be viewed as relations between rules of different diseases.


Rough sets Medical diagnostic rules Focusing mechanism Exclusive rules Inclusive rules Complications detection 



The author would like to thank past Professor Pawlak for all the comments on my research and his encouragement. Without his influence, one of the authors would neither have received Ph.D on computer science, nor become a professor of medical informatics. The author also would like to thank Professor Jerzy Grzymala-Busse, Andrezj Skowron, Roman Slowinski, Yiyu Yao, Guoyin Wang, Wojciech Ziarko for their insightful comments.


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Authors and Affiliations

  1. 1.Faculty of Medicine, Department of Medical InformaticsShimane UniversityMatsueJapan

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