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Do you mean weak ties or bridge ties? This is a too common
misunderstanding and seems to stem from too few people actually
reading the assumptions that underlie Granovetter's famous paper.
Tie-strength is a subjective human experience which does not
automatically translate into network structures -- which measures like
betweenness are about. Under certain strict conditions (almost
complete triadic closure among strongest ties, etc), you can argue
that all bridges are necessarily weak ties; however, this does not
mean that all weak ties are bridges. Thus, under strict assumptions,
you may have a mechanism of using network structure to identify a
subset of weak ties -- but you will not know how many weak ties you
are missing as weak ties may well exist without being bridges even
under those assumptions.
If those strict assumptions are not met, you can't even do that
limited step as strong ties *can* and often *do* act like bridges,
especially when triadic closure is not assumed.
On Wed, Mar 2, 2011 at 7:05 PM, G. Back <[log in to unmask]> wrote:
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> Dear List Members:
> I seek your advice on the best way to measure strong and weak ties in both
> ego- and closed-networks.
> Are measurements of closeness and betweenness useful?
> I really appreciate your help and recommendation for work I can make
> reference to.
> Note, I am using UCINET.
> Thank you.
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Zeynep Tufekci, Ph.D.
Department of Sociology and Anthropology
University of Maryland, Baltimore County
zeynep at umbc.edu or @techsoc
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