backprop-history-linnainmaa-1970-werbos-1982-rumelhart-1986

IN premise — entries/2026/06/21/wiki-Backpropagation-chunk-5.md

Created 2026-06-21T09:55:49+00:00

Seppo Linnainmaa (1970) published the first reverse-mode automatic differentiation; Paul Werbos (1982) first applied backpropagation to multilayer perceptrons; Rumelhart, Hinton, and Williams (1986 Nature paper) popularized it and triggered the 1980s neural network resurgence.

Dependents

These beliefs depend on this one:

• IN backprop-fragmented-discovery-history — Backpropagation was independently discovered at least three times across 16 years — Linnainmaa (1970), Werbos (1974/1982), Rumelhart/Hinton/Williams (1986) — making it one of the most multiply-discovered algorithms in computer science.