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IEICE TRANSACTIONS on Information

Prefix Computations on Iterative Arrays with Sequential Input/Output Mode

Chuzo IWAMOTO, Tomoka YOKOUCHI, Kenichi MORITA, Katsunobu IMAI

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Summary :

This paper investigates prefix computations on Iterative Arrays (IAs) with sequential input/output mode. We show that, for any language L accepted by a linear-time IA, there is an IA which, given an infinite string a1a2 ai, generates the values of χL(a1),χL(a1a2),L(a1a2 ai), at steps 4,16,,4i2,, respectively. Here, χL*{0,1} is the characteristic function of the language L Σ*, defined as χL(w) = 1 iff w L. We also construct 2i3-time and i4-time prefix algorithms for languages accepted by quadratic-time and cubic-time IAs, respectively.

Publication
IEICE TRANSACTIONS on Information Vol.E87-D No.3 pp.708-712
Publication Date
2004/03/01
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Type of Manuscript
Special Section PAPER (Special Section on Cellular Automata)
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