The rapid spread of infectious diseases and online rumors share similarities in terms of their
speed, scale, and patterns of contagion. Although these two phenomena have historically …

We study the epidemic source detection problem in contact tracing networks modeled as a
graph-constrained maximum likelihood estimation problem using the susceptible-infected …

Identifying the source of epidemic-like spread in networks is crucial for removing internet
viruses or finding the source of rumors in online social networks. The challenge lies in …

Online social networks (OSNs) have become breeding grounds for negative content like
rumor, misinformation, disinformation, etc. A rumor is an unverified piece of information in …

We construct a system of interacting finite memory Pólya urns to model contagion spread in
a network. The urns, which are composed of red and black balls (representing degrees of …

Detecting the origin of an epidemic-like spread in extensive networks has crucial
implications, including pinpointing rumor sources in online social networks. When provided …