The Mathematical Institute, University of Oxford, Eprints Archive

Complex networks generated by the Penna bit-string model: emergence of small-world and assortative mixing

Li, C. and Maini, P. K. (2005) Complex networks generated by the Penna bit-string model: emergence of small-world and assortative mixing. Physical Review E, 72 (4). 045102-1.

[img]
Preview
PDF
267Kb

Abstract

The Penna bit-string model successfully encompasses many phenomena of population evolution, including inheritance, mutation, evolution, and aging. If we consider social interactions among individuals in the Penna model, the population will form a complex network. In this paper, we first modify the Verhulst factor to control only the birth rate, and introduce activity-based preferential reproduction of offspring in the Penna model. The social interactions among individuals are generated by both inheritance and activity-based preferential increase. Then we study the properties of the complex network generated by the modified Penna model. We find that the resulting complex network has a small-world effect and the assortative mixing property.

Item Type:Article
Subjects:A - C > Biology and other natural sciences
Research Groups:Centre for Mathematical Biology
ID Code:338
Deposited By:Philip Maini
Deposited On:09 Nov 2006
Last Modified:20 Jul 2009 14:20

Repository Staff Only: item control page