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» On the Complexity of Universal Programs
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DLT
2008
15 years 3 months ago
Universal Recursively Enumerable Sets of Strings
The present work clarifies the relation between domains of universal machines and r.e. prefix-free supersets of such sets. One such characterisation can be obtained in terms of the...
Cristian S. Calude, André Nies, Ludwig Stai...
CORR
2010
Springer
102views Education» more  CORR 2010»
15 years 1 months ago
On Factor Universality in Symbolic Spaces
The study of factoring relations between subshifts or cellular automata is central in symbolic dynamics. Besides, a notion of intrinsic universality for cellular automata based on ...
Laurent Boyer, Guillaume Theyssier
CLEF
2006
Springer
15 years 5 months ago
The University of New South Wales at GeoCLEF 2006
This paper describes our participation in the GeoCLEF monolingual English task of the Cross Language Evaluation Forum 2006. The main objective of this study is to evaluate the retr...
You-Heng Hu, Linlin Ge
STACS
2009
Springer
15 years 8 months ago
On Local Symmetries and Universality in Cellular Automata
Cellular automata (CA) are dynamical systems defined by a finite local rule but they are studied for their global dynamics. They can exhibit a wide range of complex behaviours an...
Laurent Boyer, Guillaume Theyssier
NN
2006
Springer
15 years 1 months ago
Propagation and control of stochastic signals through universal learning networks
The way of propagating and control of stochastic signals through Universal Learning Networks (ULNs) and its applications are proposed. ULNs have been already developed to form a s...
Kotaro Hirasawa, Shingo Mabu, Jinglu Hu