An multi-scale learning network with depthwise separable convolutions

We present a simple multi-scale learning network for image classification that is inspired by the MobileNet. The proposed method has two advantages: (1) It uses the multi-scale block with depthwise separable convolutions, which forms multiple sub-networks by increasing the width of the network while keeping the computational resources constant. (2) It combines the multi-scale block with residual connections and that accelerates the training of networks significantly. The experimental results show that the proposed method has strong performance compared to other popular models on different datasets.