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distillpub / post--understanding-gnns

Official repository for our Distill.pub submission: 'Understanding Convolutions on Graphs'.
https://ameya98.github.io/exploring-graph-nns/
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Notational typo #6

Closed jspencer12 closed 2 years ago

jspencer12 commented 2 years ago

In the section titled: Polynomial Filters are Node-Order Equivariant - Details for the Interested Reader

On the second-to-last math line of the greyed box, there is an x' at the end of the expression, which I believe should simply be an x. x' would imply that it had been operated on by L or P, but the P^T P matrices from the previous line cancel to identity and the other P matrix is pulled out front. Thus, there has just been a reorganization of the matrices with no actual operations, leaving x unchanged.

ameya98 commented 2 years ago

Yes, you are absolutely correct. Thanks for catching this! I've sent in a fix.

ameya98 commented 2 years ago

@ncammarata Can we upload the latest version of the article? Thanks in advance!