Cutsomizable "channel" dimension for ND-tensor #25
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pluskid
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Dec 19, 2014
Cutsomizable "channel" dimension for ND-tensor
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This is one of the step of generalizing 4D tensor to ND tensor for Mocha. Originally, the 3rd dimension of a 4D tensor is named the channel dimension, and many layers operate explicitly along that dimension (e.g.
SoftmaxLayer,SoftmaxLossLayer,AccuracyLayer, etc.). Also,ChannelPoolingLayeris generalized to be a 1D pooling along any user specified dimension.This PR is an effort for a well-defined behavior under the case of ND tensor. The goal is to allow the user to specify which dimension to operate on for those layers, and use a default dimension that is backward compatible with the good old 4D-tensor world.