An Approach to Pulse Symbols Based Fuzzy Reasoning in Diagnosis of Traditional Vietnamese Medicine Including the Importance of Symptoms

Abstract

We propose a fuzzy model of reasoning for a pulses Based Disease Symptoms Diagnosis of Traditional Vietnamese Medicine including the importance of symptoms. Symptoms are represented as pulse symbols and disease symptoms which are regarded as fuzzy sets. The value of a membership degree in the fuzzy set of a pulse symptom or a disease symptom is given in [0, 1]. Diagnostic process is based on pulse symbols by triple Cun-Quan-Chi of traditional Vietnamese medicine. Based on pulse symbols, the diagnostic process provides the physician with disease symptoms with some types absolutely confirmation, almost confirmation, possible confirmation and not confirmation. An example of pulse based disease symptom diagnosis including the importance of symptoms by Left hand in Cun 1st position is given. The result in the example shows that the obtained diagnosis is more reasonable and it closes to thinking of the traditional medicine practitioners.