Structure comparison of binary and weighted niche-overlap graphs

Sokhn, Nayla; Baltensperger, Richard; Bersier, Louis-Félix; Ultes-Nitsche, Ulrich; Hennebert, Jean

doi:10.1007/978-3-319-05401-8_12

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Book chapter

Structure comparison of binary and weighted niche-overlap graphs

Sokhn, Nayla University of Fribourg, Switzerland - University of Applied Sciences of Western Switzerland, Fribourg, Switzerland
Baltensperger, Richard University of Applied Sciences of Western Switzerland, Fribourg, Switzerland
Bersier, Louis-Félix University of Fribourg, Switzerland
Ultes-Nitsche, Ulrich University of Fribourg, Switzerland
Hennebert, Jean University of Fribourg, Switzerland - University of Applied Sciences of Western Switzerland, Fribourg, Switzerland

01.01.2014

Published in:

Complex Networks. - 2014, vol. 5, p. 119–127

English In ecological networks, niche-overlap graphs are considered as complex systems. They represent the competition between two predators that share common resources. The purpose of this paper is to investigate the structural properties of these graphs considered as weighted networks and compare their measures with the ones calculated for the binary networks. To conduct this study, we select four classical network measures : the degree of nodes, the clustering coefficient, the assortativity, and the betweenness centrality. These measures were used to analyse different type of networks such as social networks, biological networks, world wide web, etc. Interestingly, we identify significant differences between the structure of the binary and the weighted niche-overlap graphs. This study indicates that weight information reveals different features that may provide other implications on the dynamics of these networks.

Faculty

Faculté des sciences et de médecine

Department

Département de Biologie

Language