For its shortage, presents searching time series key point algorithm, with the key point for boundary, using the appearance distance method, measures each cent a subsequence, mining latency information from the new angle of view.

• 针对其不足,文中提出一种检索时间序列分段关键点的算法,以关键点为边界分段,使用形态距离测度和快速剪除的算法,高效简便地检索出相似子模式。