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MCU
2007
97views Hardware» more  MCU 2007»
13 years 6 months ago
Using Approximation to Relate Computational Classes over the Reals
Manuel Lameiras Campagnolo, Kerry Ojakian
MCU
2007
123views Hardware» more  MCU 2007»
13 years 6 months ago
Study of Limits of Solvability in Tag Systems
Abstract. In this paper we will give an outline of the proof of the solvability of the halting and reachability problem for 2-symbolic tag systems with a deletion number v = 2. Thi...
Liesbeth De Mol
MCU
2007
92views Hardware» more  MCU 2007»
13 years 6 months ago
On the Power of Networks of Evolutionary Processors
We discuss the power of networks of evolutionary processors where only two types of nodes are allowed. We prove that (up to an intersection with a monoid) every recursively enumer...
Jürgen Dassow, Bianca Truthe
MCU
2007
144views Hardware» more  MCU 2007»
13 years 6 months ago
Four Small Universal Turing Machines
We present small polynomial time universal Turing machines with state-symbol pairs of (5, 5), (6, 4), (9, 3) and (18, 2). These machines simulate our new variant of tag system, the...
Turlough Neary, Damien Woods
MCU
2007
128views Hardware» more  MCU 2007»
13 years 6 months ago
Small Semi-weakly Universal Turing Machines
Damien Woods, Turlough Neary
MCU
2007
95views Hardware» more  MCU 2007»
13 years 6 months ago
Slightly Beyond Turing's Computability for Studying Genetic Programming
Inspired by genetic programming (GP), we study iterative algorithms for non-computable tasks and compare them to naive models. This framework justifies many practical standard tri...
Olivier Teytaud
MCU
2007
113views Hardware» more  MCU 2007»
13 years 6 months ago
On the Computational Capabilities of Several Models
We review some results about the computational power of several computational models. Considered models have in common to be related to continuous dynamical systems. 1 Dynamical Sy...
Olivier Bournez, Emmanuel Hainry