Displaying similar documents to “On-line finite automata for addition in some numeration systems”

Computing the prefix of an automaton

Marie-Pierre Béal, Olivier Carton (2000)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

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Two-way automaton computations

Jean-Camille Birget (1990)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

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How expressions can code for automata

Sylvain Lombardy, Jacques Sakarovitch (2005)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

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In this paper we investigate how it is possible to recover an automaton from a rational expression that has been computed from that automaton. The notion of derived term of an expression, introduced by Antimirov, appears to be instrumental in this problem. The second important ingredient is the co-minimization of an automaton, a dual and generalized Moore algorithm on non-deterministic automata. We show here that if an automaton is then sufficiently “decorated”, the combination of these...

The factor automaton

Milan Šimánek (2002)

Kybernetika

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This paper concerns searching substrings in a string using the factor automaton. The factor automaton is a deterministic finite automaton constructed to accept every substring of the given string. Nondeterministic factor automaton is used to achieve new operations on factor automata for searching in non-constant texts.

Corrigendum to our paper: How Expressions Can Code for Automata

Sylvain Lombardy, Jacques Sakarovitch (2010)

RAIRO - Theoretical Informatics and Applications

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In a previous paper, we have described the construction of an automaton from a rational expression which has the property that the automaton built from an expression which is itself computed from a co-deterministic automaton by the state elimination method is co-deterministic. It turned out that the definition on which the construction is based was inappropriate, and thus the proof of the property was flawed. We give here the correct definition of the broken derived terms...