The current label recommended system uses tensors to storeuser-resource-labelthree-dimensional data,mining the potential semantic association among the three. In order to solve the sparseness problem of three-dimensional data and avoid the data distortion caused by the tensor filling process,this paper proposes a tensor construction method based on tag punishment mechanism PMUS and a tensor decomposing method based on stochastic gradient descent HOSGD. Tensor is constructed by combining tag punishment mecha...