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Rational and affine expressions for image description. (English) Zbl 0784.68058
The authors present methods based on automata techniques to generate and infer ‘images’. Languages and relations over an arbitrary alphabet are treated as images, strings being considered as rational coordinates. The generation of an images is done from a set of rational or affine expression.
The most important parts of the article is generation, including comparison of various methods. For inference the authors sketch a quad- tree approach and announcee (added in proof) an automated algorithm for data compression based on slight extension of these techniques and wavelets.

MSC:
68Q45 Formal languages and automata
68Q42 Grammars and rewriting systems
68Q10 Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.)
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