According to the architecture of normal cell, the output of c_k is contacted by node 0,1,2,3, assuming the output channel of 0,1,2,3 is k, then the output channel of c_k would be 4k, the question is that
1)for cell c_k+1, c_k is an input, if node 0,1,2,3 keep output channel the same as input channel, then the output channel of
c_k+1 would be 4*4k, which means the number of filters would increase exponentially.
2)for cell c_k+1, c_k-1 is also in input, if node 0,1,2,3 keep output channel the same as input channel, then the output channel of c_k-1 is k, then when we do add operation in node 0,1,2,3, c_k's channel is 4k, the channel is different.
According to the architecture of normal cell, the output of c_k is contacted by node 0,1,2,3, assuming the output channel of 0,1,2,3 is k, then the output channel of c_k would be 4k, the question is that
1)for cell c_k+1, c_k is an input, if node 0,1,2,3 keep output channel the same as input channel, then the output channel of c_k+1 would be 4*4k, which means the number of filters would increase exponentially.
2)for cell c_k+1, c_k-1 is also in input, if node 0,1,2,3 keep output channel the same as input channel, then the output channel of c_k-1 is k, then when we do add operation in node 0,1,2,3, c_k's channel is 4k, the channel is different.