是小学期课程设计的题目，快速扩展随机生成树算法，实现了对10个数字音的识别，一种流形学习算法（很好用），用于信号特征提取、信号消噪，最大似然（ML）准则和最大后验概率（MAP）准则。- Is the topic of the elementary school stage curriculum design, Rapid expansion of random spanning tree algorithm, To achieve the recognition of 10 digital sound, A fluid manifold learning algorithm (good use), For feature extraction, signal de-noising, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.