title: Complex networks generated by the Penna bit-string model: emergence of small-world and assortative mixing.
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.
authors.affiliation: Centre for Nonlinear and Complex Systems, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, Peoples Republic of China. cgli@uestc.edu.cn
authors.forename: Chunguang
authors.initials: C
authors.lastname: Li
authors.forename: Philip K
authors.initials: PK
authors.lastname: Maini