Multiple propagation paths enhance locating the source of diffusion in complex networks
Łukasz Gajewski , Krzysztof Suchecki , Janusz Hołyst
AbstractWe investigate the problem of locating the source of diffusion in complex networks without complete knowledge of nodes’ states. Some currently known methods assume the information travels via a single, shortest path, which by assumption is the fastest way. We show that such a method leads to the overestimation of propagation time for synthetic and real networks, where multiple shortest paths as well as longer paths between vertices exist. We propose a new method of source estimation based on maximum likelihood principle, that takes into account existence multiple shortest paths. It shows up to 1.6 times higher accuracy in synthetic and real networks.
|Corporate author||The Faculty of Physics, WUT (WF)|
|Journal series||Physica A-Statistical Mechanics and Its Applications, ISSN 0378-4371, (0 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Multiple propagation, Complex Systems|
|Project||Reverse EngiNeering of sOcial Information pRocessing. Project leader: Hołyst Janusz,
, Phone: 22 234 7133, application date 28-04-2015, start date 01-01-2016, end date 31-12-2019, 691152, Implemented
|Publication indicators||= 0; = 0; : 2016 = 1.324; : 2018 = 2.5 (2) - 2018=2.464 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.