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Complex networks generated by the Penna bit-string model: emergence of small-world and assortative mixing | | Chunguang Li
; Philip K Maini
; | | Date: |
30 Sep 2005 | | Journal: | Phys Rev E, 72 (4 Pt 2), 045102 | | 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. | | Source: | PubMed, pmid16383451 | | Other source: | [GID 371729] cond-mat/0510650 | | Services: | Forum | Review | Favorites | |
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