PPT-B etweenness Centrality

Some pages are adapted from Dan Ryan Mills College B etweenness Centrality I ntuition how many pairs of individuals would have to go through you in order to reach one another in the minimum number of hops. Centrality measures. Centrality measures. Centrality is related to the potential importance of a node. Some. nodes have greater “influence” over others compared to the rest,. or are more easily accessible to other, or act as a go-between in. 7. Centrality (. cont. ). Slides modified from . Lada. . Adamic. and . Dragomir. . Radev. Outline. Degree centrality. Centralization . Betweenness. centrality. Closeness centrality. Eigenvector centrality. Hexmoor. Department of Computer Science. Southern Illinois University Carbondale. Network Theory:. Computational Phenomena and Processes. Social Network Analysis . Degree, . Indegree. , . Outdegree. Centrality. . Negahban. . Sewoong. Oh Devavrat Shah. Yale + UIUC + MIT. Rank centrality: . Ranking from comparisons. Some scenarios. Given partial preferences. Compute . global. . ranking . with . scores to reflect . Devavrat Shah. LIDS+CSAIL+EECS+ORC. Massachusetts Institute of Technology. Network centrality. It’s a graph score function . Given graph G=(V, E). Assigns “scores” to nodes in the graph. That is, . bank. . loans. Christophe J. . Godlewski. UHA & EM Strasbourg. Bulat. . Sanditov. Telecom EM. AFFI . Conference. 2015, Cergy-Pontoise. Take. . away. 2. Financial institutions network and reputation. Edith Cohen. Joint with: . Thomas . Pajor. , . Daniel . Delling. , Renato . Werneck. Microsoft Research . Very Large Graphs. Model many types of relations and interactions (edges) between entities (nodes). Edith Cohen. Joint with: . Thomas . Pajor. , . Daniel . Delling. , Renato . Werneck. Very Large Graphs. Model relations and interactions (edges) between entities (nodes). Call . detail, . email exchanges, . Excellence Through Knowledge. A periodic table of centralities. 2. An interactive periodic table of centralities: . http://. schochastics.net/sna/periodic.html. Different types of centralities:. 3. Source: Discovering Sets of Key Players in Social Networks – Daniel Ortiz-Arroyo – Springer 2010/. Ralucca Gera,. Applied Mathematics Dept.. Naval Postgraduate School. Monterey, California. rgera@nps.edu. Different types of centralities:. 2. Source: Discovering Sets of Key Players in Social Networks – Daniel Ortiz-Arroyo – Springer 2010/. Martin L . Purschke. (BNL. ), for the PHENIX Collaboration. What you’ll hear. Quick rehash of recent published results on direct photon yields. New ingenious method to extend the former low . p. T. Steven Fitzpatrick. Martha Winger-Bearskin. ‘. Intuitive’ Problems . Hamiltonian Problems. Possible Implementations . Traffic Analysis. Spread of Disease. Political Campaigns. Market Analysis. Link Analysis. Gephi). Python code . Use . Metrics.py . from . the workshop’s website. 2. NetworkX Reference. PDF reference for NetworkX. Github interactive version. 3. Finding centralities. The part of the. code that finds . A network analysis approach. Ramzi Salem. 8. th. Annual Conference . of the Bilateral Assistance . and Capacity Building for Central Banks . (BCC) programme. 1. DGER/. Research. Unit. Limited margins of monetary policy.