According to Fuzzy set theory, this paper introduces a concept of subordinate degree on the diffusion of SARS, defines a membership function, that is the test index sets based on the diffusion of SARS, and establishes a Fuzzy mathematical model on the prognostic of SARS. 根据Fuzzy集理论,引入SARS发病隶属度的概念,定义了检测指标集对SARS发病的隶属函数,从而建立了一个SARS预测的Fuzzy数学模型。
The grade of membership for each given patterns using triangle-shaped membership functions was calculated, Kalman filter can be used to identify the consequence parameters of fuzzy model, the simulation result was compared with the experimental data to test the reliability of the fuzzy model. 该方法采用三角形隶属函数计算给定样本的隶属度,利用稳态卡尔曼滤波器辨识模糊模型的结论参数,并把辨识模型的仿真结果与系统实验测量数据相对比,以检验模糊模型的可靠性。
Fuzzy mode identification method for crack identification is built based on fuzzy mode library and a membership function to define membership degree between test mode and library mode. 模糊模式识别方法的基本在于建立一个模糊模式库,通过定义隶属度函数将待识别模式与模式库模式进行比较,对待识别模式进行识别。