Data processing method and device

The invention discloses a data processing method and device which can be applied to the technical field of computers. In the method, the sparseness and the error range corresponding to different matrix scales and service types are preset, after data to be processed are decomposed, the sparseness and the error range are automatically obtained according to the matrix scales and the service types of the decomposed data, sparse processing is carried out on the decomposed data by utilizing the obtained sparseness, and the sparse processing result is obtained. Obtaining to-be-verified data according to the data subjected to sparse processing so as to judge whether the error between the to-be-verified data and the to-be-processed data is within the obtained error range, if so, considering that the to-be-verified data is subjected to sparse processing convergence, retaining the key features of the to-be-processed data and occupying small enough space, thereby saving the to-be-verified data and improving the verificat