Triadic cohesion clustering: Difference between revisions

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'''Note: this page documents a visone functionality that will be in the next release.'''
#REDIRECT [[Simmelian backbone extraction]]
 
More background information is presented at XXXIII Sunbelt Social Networks Conference of the International Network for Social Network Analysis (INSNA),
Hamburg, Germany, May 21-26, 2013:
 
*  Bobo Nick, Conrad Lee, Pádraig Cunningham, Ulrik Brandes: "Triadic Cohesion in Social Networks"
 
Please address questions and comments to [[User:Nick|Bobo Nick]].
 
== Where to find ==
 
Access is given via the [[analysis tab]] in the left-hand side of the visone window:
set ''level'' to '''grouping''', set ''class'' to '''clustering''', and set ''measure'' to '''triadic cohesion clustering (TCC)'''.
 
[[File:Tcc-wheretofind.png]]
 
== How to use ==
 
=== Configuration ===
 
[[File:Tcc-configure.png]]
 
==== link strength ====
 
For each node, the algorithm will rank its neighborhood (outgoing links) according to the provided link strength attribute.
* If '''uniform''' is selected (default), links are first weighted according to their Simmelian strength and afterwards ranked according to this newly created link attribute (termed ''triadType300'').
* '''Otherwise''', the rankings will be calculated according to the link strength attribute that was provided.
 
The resulting neighborhood rankings are saved within a new link attribute termed ''rank''.
 
==== min overlap ====
 
This parameter allows to specify a threshold for the minimal required overlap for a link not be removed from the network; see next paragraphs for more information on the calculation of the overlap.
 
==== max ranking ====
 
Given a pair of nodes, the algorithm will calculate the overlap of top-ranked other nodes in their neighborhoods.
You can use the ''max ranking'' parameter to specify the maximum rank which is still reagrded as top-rank.
That is, those neighbors that have been attached a rank greater than ''max rank'' will be disregarded when calculating the overlap.
 
==== restricted ====
 
Use this parameter to decide for which pairs of actors the overlap of top-ranked neighborhoods is calculated.
 
* if selected (default), the overlap calculation is restricted to those links which have been top-ranked themselves
* if de-selected, the overlap calculation is performed for each connected pair of actors
 
=== Execution ===
 
[[File:Tcc-apply.png]]

Latest revision as of 23:08, 18 April 2013

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