Size Reduction of Multitape Automata
We present a method for size reduction of two-way multitape automata. Our algorithm applies local transformations that change the order in which transitions concerning different tapes occur in the automaton graph, and merge suitable states into a single state. Our work is motivated by implementation of a language for string manipulation in database systems where string predicates are compiled into two-way multitape automata. Additionally, we present a (one-tape) NFA reduction algorithm that is based on a method proposed for DFA minimization by Kameda and Weiner, and apply this algorithm, combined with the multitape automata reduction algorithm, on our multitape automata.
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- 5.Tamm, H.: On minimality and size reduction of one-tape and multitape finite automata. PhD thesis, Department of Computer Science, University of Helsinki, Finland (2004)Google Scholar