Determination Method of Nonlinear Membership Function Based on the Fuzzy Density Means Cluster

Liu Qi, Chen Xi, Wu Zhenjie, Liu Xuelin, Wang Jie, Chen Zhanwei
2013 Research Journal of Applied Sciences Engineering and Technology  
Gaussian and Sigmoid membership function are commonly used, both of which have well smoothness, clear physical meaning and have no zeros in their figures. In this paper, fuzzy density means clustering method based on data distance is put forward, by using this method, the initial cluster center is obtained objectively, which has avoided the cluster results falling into a local minimum, finally the parameters used for describe the membership function are got. Through simulation, the membership
more » ... n, the membership function of data EB_Da51 in petroleum drilling is determined, which solves the problem that the function is hard to be defined.
doi:10.19026/rjaset.5.4691 fatcat:6nrw6o3td5dnvfrg24o3ojhn5q