There are 5 sample files to be used as training set and testing set. Suppose you want to view the content of these files, just pick the radio button conresponding to the specific file. And then click on the Go! button. "Original" refers to the original dataset, "SVD" refers to the tranformed file through SVD processing, "Sparsified SVD" refers to the transformed file through sparsified SVD, "Uniformlly" refers to the transformed file after adding uniformally distributed noise, and "Normally" refers to the transformed file after adding normally distributed noise.