关键词: 时间序列, 动态时间规整, 心电信号, 优先匹配, 自适应

Abstract: In view of when use the Dynamic Time Warping（DTW） algorithm to measure the time series similarity, but the sequence has a larger excursion it will cause abnormal path and inaccurate matching. According to the nature of the electrocardiogram（ECG） signal, the most significant feature based on ECG priority matching method is proposed. In order to reduce the time consumption, according to the location of R waves, restrictive windows for curved path adaptively divided, compared with the traditional method, the proposed algorithm increases the accuracy, and meanwhile the running time is significantly reduced.

Key words: time series, dynamic time warping, ElectroCardioGram（ECG）, priority matching, adaptive