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KMID : 1003820150190030141
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Journal Of The Korea Institute Of Oriental Medical Diagnostics
2015 Volume.19 No. 3 p.141 ~ p.149
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Distinction of Hot-Cold Using Fuzzy Inference
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Jang Yun-Ji
Kim Young-Eun
Kim Chul
Song Mi-Young
Rhee Eun-Joo
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Abstract
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Objectives: Recently the fuzzy logic is widely used in the decision making, identification, pattern recognition, optimization in various fields. In this study, we propose the fuzzy logic as the objective method of distinguishing hot and cold, the basis of diagnosis in Korean medicine.
Methods: We developed fuzzy inference system to distinguish whether the subjects had hot or cold. The cold and hot questionnaire of Korean traditional university textbook, the pulse rate and the DITI value of face used in the system. These three kinds of information were defined as 'fuzzy sets,' and 54 fuzzy rules were established on the basis of clinical practitioners' knowledge. The fuzzy inference was performed by using the Mamdani's method. To evaluate the usefulness of the fuzzy inference system, 200 cases of data measured in the Woosuk university hospital of oriental medicine were used to compare the determining hot, normal, cold results obtained from the experts and from the proposed system.
Results: As a result, 100 cases of "cold", 54 cases of "normal", and 34 cases of "hot" were matched between the experts and the proposed system. This fuzzy system showed the conformity degree of 94％(κ=0.853).
Conclusions: In this study, we could express the process of distinguishing hot-cold using the fuzzy logic for objectification and quantification of hot-cold identification. This is the first study that introduce a fuzzy logic for distinguish pattern identification. The degree of the heat characteristic of the patients inferred by this system could provide a more objective basis for diagnosing the hot-cold of patients.
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KEYWORD
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Hot-Cold identification , Fuzzy Inference , Mamdani Method , Quantified value
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