Pattern recognition has its origins in engineering, whereas machine learning grew out of computer science. However, these activities can be viewed as two facets of the same field, and together they have undergone substantial development over the

该工具包囊括了无向图模型的一些常用算法，包括随机场模型，预测算法，解码算法和采样算法，非常实用。-UGM is a set of Matlab functions implementing various tasks in probabilistic undirected graphical models of discrete data with pairwise (and unary) potentials。