Zhaoxu Wang

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This paper addresses the problem of a single rumor source detection with multiple observations, from a statistical point of view of a spreading over a network, based on the susceptible-infectious model. For tree networks, multiple sequential observations for one single instance of rumor spreading cannot improve over the initial snapshot observation. The(More)
This paper addresses the problem of rumor source detection with multiple observations, from a statistical point of view of a spreading over a network, based on the susceptible-infectious model. For tree networks, multiple independent observations can dramatically improve the detection probability. For the case of a single rumor source, we propose a unified(More)
This paper studies the problem of a single rumor source detection based on the susceptible-infected-susceptible (SIS) spreading model. Based on the rumor centrality proposed in the Susceptible-Infected (SI) model by Shah and Zaman, we propose a rumor centrality based algorithm, that leverages multiple observations to first construct a diffusion tree graph,(More)
  • Zhaoxu Wang
  • Proceedings of 2011 International Conference on…
  • 2011
Semantic network is the development direction of the world wide web, and it converts the traditional system and the abstract one-dimension table into the associations between semantics through ontology construction, one party for the separation of field data and operating data while the other party to provide new starting point for further researches on(More)
Earth observation from space involves accessing, sharing, and processing huge volumes of data collected from satellite sensors. It is crucial for users to easily analyze and process the datasets, which may require complex computation on very high volume datasets, particularly for large-scale spatio-temporal analysis. Generation of data products, access to,(More)
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