To use all functions of this page, please activate cookies in your browser.
With an accout for my.bionity.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
Assortative/disassortative mixing in graph theory is the extent to which nodes connect preferentially to other nodes with similar characteristics.
Additional recommended knowledge
For example, in a sexual network individuals tend to choose partners who are similar in age, race, sexual orientation, marital status, socioeconomic status, religion, or locale. These characteristics can have influences on epidemic spread, mainly HIV. Assortative mixing is involved in the phenomenon of "super-spreaders" of sexually transmitted diseases; a small fraction of the population that is very sexually promiscuous can act as a conduit for the disease to spread within the group over wide distances, and from that group to other social groups. An example of this phenomenon is the population subgroup formed by truck drivers and prostitutes.
Assortative mixing by degree refers to graphs in which high degree nodes connect frequently to other high degree nodes. A formal definition is given in M.E.J. Newman Assortative Mixing in Networks, Phys. Rev. Lett. 89, 208701 (2002). Interestingly, all simple connected graphs have negative assortativity.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Assortative_mixing". A list of authors is available in Wikipedia.|