Exploratory Social Network Analysis with Pajek: Blockmodels
-
Upload
hossein-fani -
Category
Science
-
view
157 -
download
1
description
Transcript of Exploratory Social Network Analysis with Pajek: Blockmodels
![Page 1: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/1.jpg)
Blockmodels
Exploratory Social Network Analysis, Part V, Chapter XII
![Page 2: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/2.jpg)
Modeling View Change
![Page 3: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/3.jpg)
What’s the Advantage?
![Page 4: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/4.jpg)
Definitions• Adjacency Matrix
• Incident Matrix 2-Mode Nets
• Isomorphic Network Renumbering
• Permutation
![Page 5: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/5.jpg)
Defining the Clusters Blocks
Structural Equivalence • Complete Block• Null Block• Image Matrix
Core Periphery
Core Complete Complete
Periphery Complete Null with Error
Image MatrixShrunk Net
![Page 6: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/6.jpg)
Dissimilarity
Dendrogram: hierarchical clustering
Dissimilarity Score
![Page 7: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/7.jpg)
Example: Metal Exportation
![Page 8: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/8.jpg)
Generalized Equivalence
Generalized BlockmodelingRegular Equivalence
• A regular block contains at least one arc in each row and in each column• Example: All the Ministers Advise PM
Advisors Must Advise at Least 1 Minister
User Defined
![Page 9: Exploratory Social Network Analysis with Pajek: Blockmodels](https://reader036.fdocuments.net/reader036/viewer/2022062304/55924fec1a28ab03038b4679/html5/thumbnails/9.jpg)
Adjacency MatrixDouble Click
Permutations: Operations > Partition + Permutation > Reorder Partition & Partition > Make a Permutation
DissimilarityCluster > Create Complete Cluster.Operations > Network + Cluster > Dissimilarity. Operations > Network + Cluster > Dissimilarity > Network based > Options > Report Matrix
BlockmodelingNetwork > Create Partition > Blockmodeling* Partitions > Info > Cramer’s V, Rajski.