Abstract:In view of the fact that the traditional K-means algorithm for clustering results are affected by the initial value, the number of iterations and the more likely defect of local optimal solution, a study is conducted on the initial value selection and the triangle trilateral relations law is adopted to reduce the number of iterations of the algorithm for further improvement. Through comparison of the traditional algorithm and the improved algorithm, the results show that the improved algorithm has higher accuracy. Finally, an economic choice support in power plant coal is examplified.