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Convolutional neural networks have achieved great success in various vision tasks; however, they incur heavy resource costs. By using deeper and wider networks, network accuracy can be improved rapidly. However, in an environment with limited resources (e.g., mobile applications), heavy networks may not be usable. This study shows that naive convolution can be deconstructed into a shift operation and pointwise convolution. To cope with various convolutions, we propose a new shift operation called active shift layer (ASL) that formulates the amount of shift as a learnable function with shift parameters. This new layer can be optimized end-to-end through backpropagation and it can provide optimal shift values. Finally, we apply this layer to a light and fast network that surpasses existing state-of-the-art networks.
Author Information
Yunho Jeon (KAIST)
Junmo Kim (KAIST)
Related Events (a corresponding poster, oral, or spotlight)
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2018 Poster: Constructing Fast Network through Deconstruction of Convolution »
Thu Dec 6th through Fri the 7th Room Room 210