RBM的CF，单模型效果和SVD相似，只是error在不同的地方，所以结合起来可以提升效果，总觉得RBM不够intuitive，这次实现也遇到很多困难-RBM of CF, a single model and SVD similar effect, but error in different places, so you can combine to enhance the effect, always feel RBM enough intuitive, this realization also encountered many difficulties