network stats using gephi
TRANSCRIPT
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Advanced Social Network Analysis Using GephiCMN110FEB 13, 2017
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Global Measures Density Degree
◦ Avg Degree◦ Degree distribution
Diameter Avg. Path Length
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Network Density StatisticsGraph Density Defined as the # of actual ties / # of potential ties Scale is normalized: 0-----------------------.5---------------------------------1 Low density High density Karate Club = .07 density
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Network Degree StatisticsAverage DegreeDegree Distribution- Graph of the frequency of all the nodes’ degreesAverage node degree - Undirected: 2*(#edges)/(#nodes)Karate club----->
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Network Diameter StatisticsDiameter Shortest geodesic distance between the furthermost nodes Karate club: 3
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Average Path Length StatisticsAvg. Path Length The average shortest paths of all possible nodes Karate club: 1.27 paths
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Positional Measures Degree Centrality Eigenvector Centrality Closeness Centrality Betweenness Centrality
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Degree CentralityStatisticsaverage degree auto populates data labIn-degree (# links in)Out-degree (# links out)Degree (sum of in/out)Karate club degree (top 5): ID 34, 1, 33, 3, 2
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Eigenvector Centrality Statistics Eigenvector centrality autopopulates data lab Nodal influence is relative to its neighbors Karate club top 5: ID 1, 2 3, 24, 25
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Closeness Centrality Statistics Avg. path length Autopopulates data lab Sum of the length of the shortest paths between the node and all other nodesKarate club: (some of the top) ID 3, 2, 3, 14
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Betweenness Centrality Statistics Avg. path length Autopopulates data lab Measure of centrality based on the shortest pathsKarate club: (top 5) ID 3, 32, 9, 29, 4
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Local MeasuresCommunity StructureClique
◦ All nodes are interconnected to all othersCommunity DetectionModularity◦ High: dense intragroup, sparse intergroup ties◦ Karate club: .416
Jorge
Antonio Paulina
Gloria
Miguel
Gabriel
Teresa
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Stuck? Go to the Gephi Tutorials on their website Use this cheat sheet to help you out: http://www.clementlevallois.net/gephi/tuto/en/gephi_cheat%20sheets_en.pdf