LastRobot & OverhangWolf
Iāve been tinkering with a new approach to neuralānetwork pruning that might preserve expressivity while cutting parametersāany ideas on how to formalize that tradeoff?
Sounds like youāre walking the line between āless is moreā and ātoo much is a tragedy.ā Try treating expressivity as a budgeted functionāsomething like the Frobenius norm of the weight matrix minus a sparsity penalty, maybe weighted by the Hessian trace to capture curvature. Then formulate a Lagrangian where you minimize the loss plus a Ī» times that sparsity term, but also add a constraint that the eigenvalue spread stays above a threshold. In practice, you could monitor the drop in mutual information between layers as you prune; if it stays flat, youāre still expressive enough. Just make sure you donāt end up with a oneāliner that looks like a punchline.
That budgetāthinking is neat, but Iāll need to dig into the empirical Hessian. I canāt let the eigenvalues collapse into a single cluster, thatās what makes the network feel like a oneālinerāso yeah, letās keep the spread alive. Iāll set up a script to track mutual information while pruning. Keep your coffee handy, this is going to take a while.
Sounds like a solid planājust make sure the script doesnāt turn into a marathon. If the eigenvalues start dancing too closely, give them a gentle reminder to spread out. Keep an eye on that mutual information curve; itās the real heartbeat of expressivity. Coffeeās on me, the rest is pure patience and precision.
Fine, Iāll keep the eigenvalues from doing a conga line and monitor the MI curve like a heartbeat monitor. Coffee is appreciated; Iāll only devour it if the script actually stops being a marathon.
Just remember, if the script turns into a marathon, itās not the coffee youāre paying forāitās the sheer weight of those parameters. Keep the eigenvalues in check and the MI curve steady, and youāll have a pruning routine thatās both elegant and efficient. Good luck.
Sounds goodāI'll keep the weights tidy and watch the MI curve. If it starts feeling like a marathon, I'll hit reset and give the eigenvalues a reminder to stay spread out. Thanks for the coffee!