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Where is the implementation of the convolved signal matrix

Open hbsun2113 opened this issue 6 years ago • 3 comments

hi, I cannot find the implementation of the convolved signal matrix as the following picture: image can u tell me? @tkipf

hbsun2113 avatar Jan 27 '19 13:01 hbsun2113

actually, where is the calculation of the matrix D? image

hbsun2113 avatar Jan 27 '19 13:01 hbsun2113

The normalization is carried out in https://github.com/tkipf/pygcn/blob/4396e4db5b97c9e071516bc601c9b6693696c489/pygcn/utils.py#L56 -- function: normalize.

Note that this implementation uses a simpler row-wise normalization D^{-1}A instead of D^{-1/2}AD^{-1/2}. Both perform similar in practice.

On Sun, Jan 27, 2019 at 2:38 PM hbsun2113 [email protected] wrote:

actually, where is the calculation of the matrix D? [image: image] https://user-images.githubusercontent.com/27994442/51801666-ee8c3a80-227b-11e9-9c57-247f0f5370c4.png

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tkipf avatar Jan 27 '19 14:01 tkipf

i get it,thx

hbsun2113 avatar Jan 28 '19 01:01 hbsun2113