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Perhaps it's premature for Professor Farley to be criticizing graph models
when he apparently doesn't know enough about them to be aware of directed
graphs.

Ed Peay

At 09:57 AM 17/01/2004, Alan Reifman wrote:

>The following web-based article talks about a professor's research on
>using graph theory to split up terrorist networks.  The article discusses
>how analysts commonly thought in terms of how removing one or more nodes
>would affect the probability of a network splitting up (I seem to recall
>some type of index of this type mentioned in Wasserman and Faust's Social
>Network Analysis).  The article then talks about newer approaches that
>attempt to incorporate the hierarchical nature of a network into the
>calculations.  The article can be accessed by clicking on:
>http://www.sciencenews.org/20040110/mathtrek.asp .  I've also linked it to
>my SPIDER webpage, where you can see other recent developments I've
>identified regarding networks and the spread of
>culture:  http://www.hs.ttu.edu/hd3317/spider.htm .

E R Peay, PhD
School of Psychology
Flinders University
GPO Box 2100
Adelaide, South Australia
Australia

http://www.flinders.edu.au/Psychology

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