Boolean Networks Design by Genetic Algorithms

Details Boolean Networks Design by Genetic Algorithms Boolean Networks Design by Genetic Algorithms

2011-01-31

arxiv.org/abs/1101.6018v1

In Villani, M. and Cagnoni, S. (eds.), Proceedings of CEEI 2009 - Workshop on complexity, evolution and emergent intelligence,

Computer Science

Neural and Evolutionary Computing

13 pages, 7 figures, 2 tables

Scientific paper

We present and discuss the results of an experimental analysis in the design of Boolean networks by means of genetic algorithms. A population of networks is evolved with the aim of finding a network such that the attractor it reaches is of required length $l$. In general, any target can be defined, provided that it is possible to model the task as an optimisation problem over the space of networks. We experiment with different initial conditions for the networks, namely in ordered, chaotic and critical regions, and also with different target length values. Results show that all kinds of initial networks can attain the desired goal, but with different success ratios: initial populations composed of critical or chaotic networks are more likely to reach the target. Moreover, the evolution starting from critical networks achieves the best overall performance. This study is the first step toward the use of search algorithms as tools for automatically design Boolean networks with required properties.

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