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» Some Results on Directable Automata
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DMTCS
2010
137views Mathematics» more  DMTCS 2010»
13 years 3 months ago
Deterministic recognizability of picture languages with Wang automata
We present a model of automaton for picture language recognition, called Wang automaton, which is based on labeled Wang tiles. Wang automata combine features of both online tessell...
Violetta Lonati, Matteo Pradella
CPM
2004
Springer
87views Combinatorics» more  CPM 2004»
13 years 11 months ago
A Trie-Based Approach for Compacting Automata
We describe a new technique for reducing the number of nodes and symbols in automata based on tries. The technique stems from some results on anti-dictionaries for data compression...
Maxime Crochemore, Chiara Epifanio, Roberto Grossi...
CORR
2010
Springer
132views Education» more  CORR 2010»
13 years 6 months ago
Small NFAs from Regular Expressions: Some Experimental Results
Regular expressions (REs), because of their succinctness and clear syntax, are the common choice to represent regular languages. However, efficient pattern matching or word recogni...
Hugo Gouveia, Nelma Moreira, Rogério Reis
CORR
2008
Springer
105views Education» more  CORR 2008»
13 years 6 months ago
A compact topology for sand automata
In this paper, we exhibit a strong relation between the sand automata configuration space and the cellular automata configuration space. This relation induces a compact topology f...
Alberto Dennunzio, Pierre Guillon, Benoît Ma...
AMAST
2006
Springer
13 years 10 months ago
Some Programming Languages for Logspace and Ptime
We propose two characterizations of complexity classes by means of programming languages. The first concerns Logspace while the second leads to Ptime. This latter characterization ...
Guillaume Bonfante