Method · simulation-based inference

Fifteenth-century cipher practices as one fitted family, per section

A simulator whose settings cover the hand-cipher practice of the period (homophones and how they are chosen, syllable signs, a nomenclator, scribal abbreviation, simplified spelling, dropped vowels, nulls made by copying, three spacing practices, positional sign forms, the line layer), fitted to one section's training pages by approximate Bayesian computation and checked on its held-out pages.