English
epsilon-machine
From epsilon + machine.
The story
Coined by James Crutchfield and Karl Young in their 1989 paper “Inferring Statistical Complexity”.
Today it means
noun A deterministic automaton consisting of a system of causal states and the transitions between them, functioning as the smallest possible maximally predictive model of a stochastic process
Language periods are conventional ranges, not dates for this word.
Etymograph / epsilon-machine