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back | new search | print Bohn, Angela; Walchhofer, Norbert; Mair, Patrick; Hornik, Kurt: Social Network Analysis of Weighted Telecommunications Graphs Research Report Series / Department of Statistics and Mathematics, Nr. 84, March 2009 Department of Statistics and Mathematics , Wirtschaftsuniversität Wien, Augasse 2-6, A-1090 Wien, Austria, 2009 Holdings from the WU library catalog | document ID: oai:epub.wu-wien.ac.at:epub-wu-01_ea4 Download document 11 pages/441 kB © Copyright notice  Abstract: SNA provides a wide range of tools that allow examination of telecommunications graphs. Those graphs contain vertices representing cell phone users and lines standing for established connections. Many sna tools do not incorporate the intensity of interaction. This may lead to wrong conclusions because the difference between best friends and random contacts can be defined by the accumulated duration of talks. To solve this problem, we propose a closeness centrality measure (ewc) that incorporates line values and compare it to Freeman's closeness. Small exemplary networks will demonstrate the characteristics of the weighted closeness compared to other centrality measures. Finally, the ewc will be tested on a real-world telecommunications graph provided by a large Austrian mobile service provider and the advantages of the ewc will be discussed. (author´s abstract)  Keywords: social network analysis / centrality measure / Freeman's closeness / edge-weighted closeness © 2009 University Library and Institute for Information Business, Vienna University of Economics and Business | Thu Sep 2 19:28:19 2010