A Headache Diagnosis Method Using an Aggregate Operator

Ahn, Jeong-Yong;Choi, Kyung-Ho;Park, Jeong-Hyun

  • Received : 2011.12.08
  • Accepted : 2012.03.19
  • Published : 2012.05.31


The fuzzy set framework has a number of properties that make it suitable to formulize uncertain information in medical diagnosis. This study introduces a fuzzy diagnostic method based on the interval-valued interview chart and the interval-valued intuitionistic fuzzy weighted arithmetic average(IIFWAA) operator. An issue in the use of the IIFWAA operator is to determine the weights. In this study, we propose the occurrence information of symptoms as the weights. An illustrative example is provided to demonstrate its practicality and effectiveness.


Interval-valued fuzzy sets;fuzzy differential diagnosis;interview chart;IIFWAA operator;occurrence information of symptoms


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Supported by : National Research Foundation of Korea (NRF)