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2008

A CKY parser for picture grammars

10 years 1 months ago
A CKY parser for picture grammars
We study the complexity of the membership or parsing problem for pictures generated by a family of picture grammars: Siromoney's Context-Free Kolam Array grammars (coincident with Matz's context-free picture grammars). We describe a new parsing algorithm, which extends the Cocke, Kasami and Younger's classical parsing technique for string languages and preserves the polynomial time complexity. Key words: formal languages, picture languages, 2D languages, context-free picture grammars, CKY parsing, Kolam Array grammars, Matrix grammars, Siromoney grammars
Stefano Crespi-Reghizzi, Matteo Pradella
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2008
Where IPL
Authors Stefano Crespi-Reghizzi, Matteo Pradella
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