同时，在事件触发词的指导下，采用自相似度最大最小策略，对K-means算法中的K值进行自收敛，优化了聚类算法，完成了事件的类别判断。
Secondly , based on triggers guidance , min-max clustering strategy is adapted to self-constrict K in K-means clustering algorithm , which optimizes clustering algorithm , and event classification is completed .
最大最小策略