Tree Insertion Systems
نویسندگان
چکیده
We define tree insertion systems which generates trees. The generative power is compared with the traditional generating and accepting devices for trees. Methods for conversion of tree insertion system to regular tree grammar and finite state bottom-up tree automata to tree insertion system are expalined with suitable examples. An outline of proof by induction for the equivalence of tree insertion system and regular tree grammars is given. Some extensions of tree insertion system, where tree nodes can have variable, but fixed arity and their powers are also discussed. Its found that such an extended system is capable of generating parse trees of context-fre grammars.
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