Article | 30-November-2018
management of social security, but also avoid unnecessary waste of manpower and property.
Combined with big data processing technology, this paper establishes a hierarchical model based on PCA algorithm, K-meas clustering algorithm and entropy method. First, 14 evaluation indicators related to the hazard of the event were selected to preprocess the existing data. Secondly, the PCA method was used to reduce the index from 14 dimensions to 4 dimensions, and the reduced dimension vector was obtained by the
International Journal of Advanced Network, Monitoring and Controls, Volume 4 , ISSUE 2, 81–85