Mitchell Centre Seminar Series
| Dates: | 16 October 2019 |
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| Times: | 16:00 - 17:30 |
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| What is it: | Seminar |
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| Organiser: | School of Social Sciences |
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David Schoch, The University of Manchester
Projecting Signed Two-Mode Networks
Research on signed networks is mainly driven by structural balance theory and
the concept of clusterability by Davis. Many empirical studies exist that
investigate the theory in different settings using a plethora of different
measures to assess the ``balancedness'' of a network. Comparably little
attention has been paid to adapting other network analytic tasks, such as
centrality. One of the more developed tools is the adaption of blockmodeling for
signed networks, including signed two-mode networks, put forward by P. Doreian
and collaborators. In this talk, I will discuss the possibility of projecting
signed two-mode networks onto one focal mode and describe two different
projection methods. The projections no longer only include positive and negative
ties, but also so called ambivalent ties. This third type of ties poses various
technical difficulties, for instance in the definition of the adjacency matrix.
I will illustrate how to analyze networks containing all three types of ties
using complex matrices. The introduced methods are applied to a large signed
two-mode network derived from commenting behavior of users in political
subreddits
Travel and Contact Information
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G6
Humanities Bridgeford Street
Manchester
