International Journal of Pattern Recognition and Artificial Intelligence · 1989 · 15 citations · 4 references
ComputingComputer ScienceMathematicsCombinatoricsSet TheorySyntaxAutomata TheoryFinite AutomataGrammarLanguage ModelingSyntactic AnalysisChomsky HierarchyComplexityLanguage GenerationSubstitutionsSyntactic Structures
We define a syntactic model for generating sets of images, where an image can be viewed as an array over finite alphabet. This model is called image grammar. Image grammar can be considered as a generalization of classical Chomsky grammar. Then we study some combinatorial and language theoretical properties such as reduction, pumping lemmas, complexity measure, we give a strict infinite hierarchy. We also characterize these families in terms of deterministic substitutions and Chomsky languages.
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Parallel context-free languages
Rani Siromoney, Kamala Krithivasan · Information and Control · 1974 · 40 citations