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The following links have been tagged behave by users just like you, because these resources are off-site we cannot guarantee the accuracy or quality of any third-party information.
- Social
Structure and
Opinion
Formation: (20 July
2004)We
present a
dynamical
theory of
opinion
formation that
takes
explicitly
into account
the structure
of the social
network in
which in-
dividuals are
embedded. The
theory
predicts the
evolution of a
set of
opinions
through the
social network
and
establishes
the existence
of a
martingale
property, i.e.
that the
expected
weighted
fraction of
the population
that holds a
given opinion
is constant in
time. Most
importantly,
this weighted
fraction is
not either
zero or one,
but
corresponds to
a non-trivial
distribution
of opinions in
the long time
limit. This
co-existence
of opinions
within a
social network
is in
agreement with
the often
observed
locality
effect, in
which an
opinion or a
fad is
localized to
given groups
without
infecting the
whole society.
We verified
these
predictions,
as well as
those
concerning the
fragility of
opinions and
the importance
of highly
connected
individuals in
opinion
formation, by
performing
computer
experiments on
a number of
social
networks.
Source: (20 July 2004)
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