本程序是一个在线签名鉴定的核心代码，在这个系统中数据输入和系统的训练与识别是分开的-this procedure is an online signature verification of the core code, in this system of data input and system training and recognition are separate

流形学习算法LLE的核心代码，实现对高维图像数据的降维，适合初学者-LLE manifold learning algorithm of the core code, the realization of high-dimensional image data dimensionality reduction, suitable for beginners