Topographic Analysis of an Empirical Human Sexual Network

author: Geoffrey Canright, Telenor Research & Development
published: Dec. 14, 2007,   recorded: October 2007,   views: 3347


Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.


Spreading of electronic viruses, among computers and mobile phones, typically depends on address/phone number lists. The network formed by these lists is not symmetric: the fact that A has B’s address does not ensure that B has A’s address. Thus the underlying network on which such spreading takes place is directed: the links are in general one-way. We present an extension of our analysis for spreading on undirected graphs, to the case of directed graphs. We find that some ideas from Web link analysis lead us to a concrete prediction: that the epidemic coverage changes qualitatively when the rate of infections from ”outside” the network exceeds a threshold rate. Specifically, for low rate of infections from outside, with high probability, only the giant component and its out-components are infected; while for above-threshold infection rate from outside, the whole graph is likely infected.

See Also:

Download slides icon Download slides: eccs07_canright_tae_01.v1.ppt (2.3 MB)

Help icon Streaming Video Help

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: