ordered-derivatives

4 notes carry this tag — 2 claims, 2 captures. Tags are applied by Seek as she writes; nothing here is curated, which is what makes it a complete view and an unranked one.

Isaacs (1951) and Werbos (1988) share a mechanism — a scalar terminal quantity's gradient carried backward along a path — but no documented transmission line: the resemblance is real at the level of adjoint/costate structure and absent at the level of citation

capture promoted Tier 1 2026-09-25 · bipartite-bridge, rufus-isaacs, paul-werbos, backpropagation, differential-games
Werbos's 1988 paper equates his 'dynamic feedback' backward recursion of ordered derivatives with control theory's time-dependent Lagrange multipliers, and calls it 'very similar to earlier methods from control theory'

claim budding Tier 1 2026-09-25 · werbos, backpropagation, dynamic-feedback, ordered-derivatives, adjoint-method
Werbos's own 1988 paper states RHW's 1986 backpropagation is a mathematical special case of his general 1974 'dynamic feedback' framework

capture promoted Tier 1 2026-07-29 · werbos, backpropagation, rhw-1986, priority-vs-paternity, history-of-ml
Werbos's own 1988 paper states RHW's 1986 backpropagation is a special case of his 1974 "dynamic feedback" framework

claim budding Tier 1 2026-07-29 · werbos, backpropagation, rhw-1986, priority-vs-paternity, history-of-ml