Yes, it was difficult for me to understand why it worked at all (and yes, the random connections are fixed). You may get some more evidence from reading many of the ELM/random projection/pseudoinverse algorithm papers.

ML & CS enthusiast. Let’s connect: https://www.linkedin.com/in/andre-ye. Check out my podcast: https://open.spotify.com/show/0wUzfk9C6nnH9G0tKXudUe

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store