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Comment by dwrodri

17 hours ago

Admittedly probably some aggrandized boasting here, but I think empirical verification of that Adam modification alone would be a meaningful contribution, unless that's prior work?

A theory that skips the parameter space, and understands grokking theory, comes up with an unexplained update rule, which notably works on a per-parameter level by dropping the updates for most parameters.

I suspect there is going to be a lot of handwaving to actually go from eNTK to that new update rule.

I also doubt it helps in the non-grokking regime, given the focus of the theory, which is where all the practical applications I have ever heard from live.

Don't get me wrong, I did enjoy reading this essay. It's well written and reasonably argumented without going into details.

  • The handwaving required is just to assume a diagonal preconditioner, and the optimal preconditioner under that constraint corresponds to the new update rule. (See section F of the paper.) And of course a diagonal preconditioner works on the per-paramer level.