Diagnosis Method for Cardiac Patient Based on Improved Dempster-Shafer Evidence Theory
For getting correct diagnosis result for cardiac patient, an improvement method for Dempster-Shafer combining evidence theory was put forward in this paper. Different from DS theory, two key parameters are introduced, one is the reliability of evidence, and another is the correlation coefficient between evidences. By weighting the evidence based on its reliability, the negative effect of unreliable evidence is reduced. By decreasing the probability evaluation of certainty and increasing the probability evaluation of uncertainty, the effect of correlative evidence to fusion result is reduced too, and then we can get better diagnosis which is closer to the fact. There is an example to compare the difference between two methods, and then the advantage of the improved method is shown.
Cardiac Disease Evidence Theory Reliability Correlation Coefficeient
Ping Wang Xuben Wang
Xihua University Electric and Information Engineering College Chengdu, China Chengdu University of Technology Information Engineering College Chengdu, China
国际会议
上海
英文
1935-1938
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）