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Since email network is becoming a hot topic in this list and I have been on
this topic for some time. I want to know how many of you want such a tool
that can automatically generate a network file from an email account (or
several email boxes, or a batch of email archives in .mbx format)(either in
Ucinet format or a simple link list) in 5 minutes?
I am currently coding such a tool as well as some visualization component
(it is 95% done). If you are interested, please drop me an email as well as
what kind of special functions do you want to have?

Jun


----- Original Message -----
From: "Steve Borgatti" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, March 30, 2003 6:48 PM
Subject: Re: Email networks and communities


> *****  To join INSNA, visit http://www.sfu.ca/~insna/  *****
>
> BTW, this is kind of fun to play with interactively using NetDraw. In
> Ucinet, run Edge Betweenness. Then in NetDraw, open the edgebetweenness
> matrix as a network. Then in the Tie window, set the dichotomizing
operator
> to LT and the cutoff to the largest edge betweenness value. Then
repeatedly
> press the "-" button to systematically lower the cutoff. As you do, you
see
> components emerge.
>
> steve.
>
> ----- Original Message -----
> From: "Mark Newman" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, March 27, 2003 11:32 AM
> Subject: Re: Email networks and communities
>
>
> > *****  To join INSNA, visit http://www.sfu.ca/~insna/  *****
> >
> > > The recently paper written by Huberman et al. presents a nice
algorithm
> > > that corroborate our results in a company half of the size of our
> > > university. Nevertheless, the algorithm of Girvan and Newman
> discriminates
> > > communities up to the size of individual persons and is a matter of
> choice
> > > to define the minimal size we assign to a community. We argue that the
> GN
> > > algorithm complemented with the full visualization of the binary tree
is
> an
> > > excellent tool for management purposes.
> >
> >
> > In fact, as far as I can make out, the paper by Tyler, Wilkinson, and
> > Huberman, which is under discussion here, also uses the algorithm
> > created by Michelle Girvan and myself that Dr. Diaz-Guilera mentions.
> > (For the larger components they use a slight variation of it that
> > employs path sampling rather than total path counts, but it's
> > fundamentally the same method.  For the small components they use
> > precisely our method.)  So I believe it should not come as a great
> > surprise that the two studies find similar results.
> >
> > Best wishes,
> > Mark Newman.
> >
> > --
> > Prof. M. E. J. Newman
> > Center for the Study of Complex Systems, University of Michigan and
> > Santa Fe Institute, Santa Fe, New Mexico
> >
> > _____________________________________________________________________
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>

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