File descriptions train.npy: a numpy dump. The matrix is of shape 50000*3073. The first 3072 columns are the pixels of the image of shape 3 * 32 * 32, the last column is the category of the image, from 0 to 99. test.npy: a numpy dump. The matrix is of shape 10000*3072. The pixels of the test images of shape 3 * 32 * 32. When you make a submission, please use a csv file with the first row being "Id,Category" and the remaining rows your predicted categories with ids starting from 0.