Table 2.

Classification accuracy of different methods on MNIST.

Training samples	Accuracy (%)
	CNN [26]	CNN-SVM [19]	PCA-BPR [36]	HOG-SVM [37]	Our method
600	84.01	86.48	89.23	86.47	91.03
1000	89.31	90.41	91.04	91.24	92.93
6000	95.06	94.88	93.83	93.57	96.74
10000	98.17	97.09	96.03	95.13	98.62
60000	98.89	99.06	98.01	96.85	99.01