自李菲菲提出bag of words 这个想法以来，借助于该思路的各种算法层出不穷，也表现非常不错的性能。该文件是在其人的tutorial上提供的一个Demo，有非常详细的注释，希望能给大家带来帮助,Since the LI Fei-made bag of words this idea since the idea of the various algorithms by means of an endless stream, but also doing a very good perfor