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Published in:
2019 | OriginalPaper | Chapter
7. Source Identification Under Snapshots: A Sample Path Based Source Estimator
Authors : Jiaojiao Jiang, Sheng Wen, Shui Yu, Bo Liu, Yang Xiang, Wanlei Zhou
Published in: Malicious Attack Propagation and Source Identification
Publisher: Springer International Publishing
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Abstract
In this chapter, we introduce a propagation source estimator under snapshot observations: a sample path based source estimator (Jordan Center). According to Chap. 5, a snapshot provides partial knowledge of network status at a given time t. Many approaches have been proposed to identify propagation sources under snapshot observations, including Jordan Center, Dynamic Message Passing, effective distance based method, etc. Within these methods, Jordan center is a representative one and many variations and improvements have been made based on this method. Here, we present the details of the Jordan Center estimator. For the techniques involved in other methods under snapshot observations, readers could refer to Chap. 9 for details.