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G. Siromoney, R. Siromoney, K.Krithivasan. Picture languages with array rewriting rules. Info. and Control 22, pp. 447--470, 1973.

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Two-Dimensional Languages - Giammarresi, Restivo (1997)   (31 citations)  (Correct)

....2 identified to a conventional automaton when restricted to one row (or one column) pictures. Moreover, the family of picture languages recognized by this model of automaton satisfy many important properties. Different systems to generate pictures using grammars have been also explored (cf. [31, 32, 33, 35, 34, 36, 29, 30, 39]) However, in the finite state case, this approach is shown to be less powerful than others. Another possible generalization is to describe picture languages by logic formulas. Recently, W. Thomas gave a general formalism to describe graphs (and, in particular, pictures) as model theoretical ....

....languages are not related by inclusion relations. In fact in [18] there are examples of picture languages recognized by a DFA and not recognized by any 2DOTA and vice versa. 5 Grammars Different systems for generating pictures using grammars have been explored in the literature (cf. for example, [31, 32, 33, 35, 34, 36, 29, 30, 39]) We consider here models that consist of two sets of rewriting rules: horizontal and vertical rules, respectively, that correspond either to a context free or regular (conventional) grammars. These models operate by first generating a (horizontal) string oe using the horizontal rules; then ....

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G. Siromoney, R. Siromoney, K.Krithivasan. Picture languages with array rewriting rules. Info. and Control 22, pp. 447--470, 1973.


Bending the Rules: Steps Toward Semantically Enriched Graphical.. - Repenning (1995)   (7 citations)  (Correct)

....through a maze consisting of hallway segments, serving as conductors. Once the mapping between a problem like the pacman game and the flow metaphor is established, the solution becomes trivial. However, to recognize this mapping can be problematic. 3.2. Rotation and Symmetry Siromoney et al.[13] extended Kirsch s rewrite rule model with reflection and rotation. Furnas included these 232 Repenning, A. Bending the Rules: Steps toward Semantically enriched Graphical Rewrite Rules, Proceeding of Visual Languages, Darmstadt, Germany, 1995, pp. 226 233. transformations as attributes to ....

Siromoney, G., R. Siromoney and K. Krithivasan, "Picture Languages with Array Rewriting Rules," Information and Control, pp. 447-470, 1973.

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