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Applied Math Seminar--Master's Exam

Date:
-
Location:
745 Patterson Office Tower
Speaker(s) / Presenter(s):
Sarah Orchard, University of Kentucky

Title: "A Matrix Analysis of Centrality Measures"

Abstract:  When analyzing a network, one of the most basic concerns is identifying the "important" nodes in the network. What defines "important" can vary from network to network, depending on what one is trying to analyze about the network. In this paper by Benzi and Klymko several different centrality measures, methods of computing node importance, are introduced and compared. We will see that some centrality measures give more information about the network on a local scale, while others help to analyze on a more global scale. In particular, the paper analyzes the behavior of these measures as we let the parameters defining them approach certain limits that appear to be problematic.