Small Universal Accepting Networks of Evolutionary Processors with Filtered Connections

Remco Loos
Florin Manea
Victor Mitrana

In this paper, we present some results regarding the size complexity of Accepting Networks of Evolutionary Processors with Filtered Connections (ANEPFCs). We show that there are universal ANEPFCs of size 10, by devising a method for simulating 2-Tag Systems. This result significantly improves the known upper bound for the size of universal ANEPFCs which is 18.

We also propose a new, computationally and descriptionally efficient simulation of nondeterministic Turing machines by ANEPFCs. More precisely, we describe (informally, due to space limitations) how ANEPFCs with 16 nodes can simulate in O(f(n)) time any nondeterministic Turing machine of time complexity f(n). Thus the known upper bound for the number of nodes in a network simulating an arbitrary Turing machine is decreased from 26 to 16.

In Jürgen Dassow, Giovanni Pighizzini and Bianca Truthe: Proceedings Eleventh International Workshop on Descriptional Complexity of Formal Systems (DCFS 2009), Magdeburg, Germany, July 6-9, 2009, Electronic Proceedings in Theoretical Computer Science 3, pp. 173–182.
Published: 30th July 2009.

ArXived at: http://dx.doi.org/10.4204/EPTCS.3.16 bibtex PDF

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