Conway's Gradient: Reversing Life with differentiable programming (hardmath123.github.io) 28 points by hardmath123 6y ago ↗ HN
[–] Jugglerofworlds 6y ago ↗ I recently made a similar implementation for SHA256. Unfortunately it suffers from gradient vanishing. Source code: https://github.com/calebh/differentiablesha256 [–] hardmath123 6y ago ↗ Cool project! Yes, it would be really surprising if this "worked," because SHA256 is meant to be very difficult to reverse. But it's interesting that the failure mode is gradient vanishing as opposed to, say, getting trapped in a local optimum.
[–] hardmath123 6y ago ↗ Cool project! Yes, it would be really surprising if this "worked," because SHA256 is meant to be very difficult to reverse. But it's interesting that the failure mode is gradient vanishing as opposed to, say, getting trapped in a local optimum.
2 comments
[ 2.9 ms ] story [ 16.1 ms ] thread