Hongbin Pei

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Without sufficient preparation and on-site management, the mass scale unexpected huge human crowd is a serious threat to public safety. A recent impressive tragedy is the 2014 Shanghai Stampede, where 36 people were killed and 49 were injured in celebration of the New Year’s Eve on December 31th 2014 in the Shanghai Bund. Due to the innately stochastic and(More)
During an epidemic, the spatial, temporal and demographic patterns of disease transmission are determined by multiple factors. In addition to the physiological properties of the pathogens and hosts, the social contact of the host population, which characterizes the reciprocal exposures of individuals to infection according to their demographic structure and(More)
During an epidemic, the spatial, temporal and demographical patterns of disease transmission are determined by multiple factors. Besides the physiological properties of pathogenes and hosts, the social contacts of host population, which characterize individuals' reciprocal exposures of infection in view of demographical structures and various social(More)
Predicting epidemic dynamics is of great value in understanding and controlling diffusion processes, such as infectious disease spread and information propagation. This task is intractable, especially when surveillance resources are very limited. To address the challenge, we study the problem of active surveillance, i.e., how to identify a small portion of(More)
In this paper, a method about how to identify insecure behaviors of browser extensions is proposed. Typically, the identification of insecure extension behaviors is based on knowledge which is got by investigating known malicious or vulnerable extensions. We present an automatic technique that can ease the laborious manual investigating process. Our(More)
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