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Adapting the Bak-Sneppen Model to a
Dynamic and Partially Connected Grid of
Hierarchical Species
C.M. Fernandes (Technical Univ. of Lisbon), J.L.J. Laredo, J.J. Merelo, C. Cotta, A.C.Rosa
This paper investigates the behaviour of a variant of
the Bak-Sneppen model in which the species move on
2D habitat according to a simple set of rules.
0
0.2
0.4
0.6
0.8
1
fitness
time-steps, t
G(s) average min
0
0.2
0.4
0.6
0.8
1
fitness
time-steps, t
G(s) average min
Proposed
2D Bak-
Sneppen
Model
Standard 2D Bak-Sneppen model Standard 2D Bak-Sneppen model
Standard 1D Bak-Sneppen model
Spectral density of the distance between neighbours Gap functions and average and
minimum fitness
Periods of statis vs frequency (log-log)
Model without mutations

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Adapting the Bak-Sneppen Model to a Dynamic and Partially Connected Grid of Hierarchical Species

  • 1. Adapting the Bak-Sneppen Model to a Dynamic and Partially Connected Grid of Hierarchical Species C.M. Fernandes (Technical Univ. of Lisbon), J.L.J. Laredo, J.J. Merelo, C. Cotta, A.C.Rosa This paper investigates the behaviour of a variant of the Bak-Sneppen model in which the species move on 2D habitat according to a simple set of rules. 0 0.2 0.4 0.6 0.8 1 fitness time-steps, t G(s) average min 0 0.2 0.4 0.6 0.8 1 fitness time-steps, t G(s) average min Proposed 2D Bak- Sneppen Model Standard 2D Bak-Sneppen model Standard 2D Bak-Sneppen model Standard 1D Bak-Sneppen model Spectral density of the distance between neighbours Gap functions and average and minimum fitness Periods of statis vs frequency (log-log) Model without mutations