*****  To join INSNA, visit http://www.insna.org  *****
<div>Steve,</div>
<div> </div>
<div>Steve Borgotti published an excellent paper on fragmentation and the key player problem.  I have horrible internet, so I won&#39;t find the paper.  His measure of fragmentation might be a good measure of group cohesiveness.  There is a ppt from Steve with the formula for fragmentation towards the end.  I am sure Steve can give you a lot better ideas.  I think the fragmentation is included in ORA and probably UCINet as well, but I haven&#39;t used it personnally.</div>

<div> </div>
<div><a href="http://www.analytictech.com/essex/Lectures/centrality.pdf">http://www.analytictech.com/essex/Lectures/centrality.pdf</a></div>
<div> </div>
<div>Best of luck.</div>
<div> </div>
<div>Ian McCulloh, Ph.D.</div>
<div>Major, US Army<br><br></div>
<div class="gmail_quote">On Fri, Jan 1, 2010 at 4:18 AM, Steve Eichert <span dir="ltr">&lt;<a href="mailto:[log in to unmask]"><a href="/cgi-bin/wa?LOGON=A3%3Dind0912%26L%3DSOCNET%26E%3Dquoted-printable%26P%3D1074317%26B%3D--0016e68aa89c433509047c1046d2%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a></a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">***** To join INSNA, visit <a href="http://www.insna.org/" target="_blank">http://www.insna.org</a> ***** Hello, 
<div><br></div>
<div>I&#39;ve been using the Newman Girvan algorithm [1] to identify communities within networks of individuals, however, I&#39;ve been told by someone who I respect greatly that Newman Girvan isn&#39;t the best algorithm to use for identifying communities when dealing with human networks.  So, the question I have for the group is: what algorithm would you recommend for identifying communities when working with networks of people.  </div>

<div><br></div>
<div>[1] <a href="http://en.wikipedia.org/wiki/Girvan" target="_blank">http://en.wikipedia.org/wiki/Girvan</a>–Newman_algorithm</div>
<div><br></div>
<div>All the best,</div>
<div>Steve</div>_____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (<a href="http://www.insna.org/" target="_blank">http://www.insna.org</a>). To unsubscribe, send an email message to <a href="mailto:[log in to unmask]" target="_blank"><a href="/cgi-bin/wa?LOGON=A3%3Dind0912%26L%3DSOCNET%26E%3Dquoted-printable%26P%3D1074317%26B%3D--0016e68aa89c433509047c1046d2%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a></a> containing the line UNSUBSCRIBE SOCNET in the body of the message. </blockquote>
</div><br>
_____________________________________________________________________
SOCNET is a service of INSNA, the professional association for social
network researchers (http://www.insna.org). To unsubscribe, send
an email message to <a href="/cgi-bin/wa?LOGON=A3%3Dind0912%26L%3DSOCNET%26E%3Dquoted-printable%26P%3D1074317%26B%3D--0016e68aa89c433509047c1046d2%26T%3Dtext%252Fhtml%3B%2520charset%3Dwindows-1252%26pending%3D" target="_parent" >[log in to unmask]</a> containing the line
UNSUBSCRIBE SOCNET in the body of the message.