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Source Estimation for Propagation Processes on Complex Networks with an Application to Delays in Public Transportation Systems

Presented by: 
Juliane Manitz Georg-August-Universität Göttingen, Boston University
Date: 
Friday 26th August 2016 - 11:30 to 12:10
Venue: 
INI Seminar Room 1
Abstract: 
Co-authors: Jonas Harbering (University of Göttingen), Marie Schmidt (Erasmus University Rotterdam), Thomas Kneib (University of Göttingen), Anita Schöbel (University of Göttingen)

The correct identification of the source of a propagation process is crucial in many research fields. As a specific application, we onsider source estimation of delays in public transportation networks. We propose two approaches: a effective distance median and a backtracking method. The former is based on the structurally generic effective distance-based approach for the identification of infectious disease origins, and the latter is specifically designed for delay propagation. We examine the performance of both methods in simulation studies and in an application to the German railway system, and compare the results to a centrality-based approach for source detection.
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Presentation Material: 
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons