[thearn4]

I had a large interest in discrete convolution operations a few years ago, particularly in application to digital image processing. Two papers that I published may be of interest to those here:

[A paper that as a lemma demonstrates the influence of boundary conditions on the use of discrete orthogonal transformations for fast convolution operations] https://scholar.google.com/citations?view_op=view_citation&h...

[accelerating convolution operations when a matrix factorization (SVD, DCT for jpeg, etc.) is already available]

https://scholar.google.com/citations?view_op=view_citation&h...

[tacos]

Second paper in particular is pretty fascinating. I'm sure you see the parallels to convolutional neural networks. Thanks for posting.