DTW（Dynamic Time Warping，动态时间归整）算法，该算法基于动态规划（DP）的思想，解决了发音长短不一的模板匹配问题，是语音识别中出现较早、较为经典的一种算法。-DTW (Dynamic Time Warping, Dynamic Time Warping) algorithm based on dynamic programming (DP) ideas, to solve the pronunciation of different lengths of the template matching problem, is the speech recognition appeared in the early, more of a classical algorithm.