5 citations · 15 across the 10 of their papers we have counts for
Showing 2009Show all
2 papers · 1 filter
cs.FL2009★ 1 cited
A unifying approach to picture grammars
Matteo Pradella, Alessandra Cherubini, Stefano Crespi Reghizzi
Several old and recent classes of picture grammars, that variously extend context-free string grammars in two dimensions, are based on rules that rewrite arrays of pixels. Such gra…
cs.FL2009★ 1 cited
Algebraic properties of structured context-free languages: old approaches and novel developments
Stefano Crespi Reghizzi, Dino Mandrioli
The historical research line on the algebraic properties of structured CF languages initiated by McNaughton's Parenthesis Languages has recently attracted much renewed interest wit…