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No illegal activity is carried out at once. Usually, parties of illegal activity collect and analyze all possible information about the target and carry out the planning and then proceed to the realization stage. In this paper, heuristic algorithm is suggested for detection of illegal activities and permanent monitoring on current situation in the country over the internet.
This paper examines how core social networks were activated in the wake of the bombing in Oslo on July 22, 2011. Empirical mobile traffic data illuminate exceptional behavior, just after the bombing in Oslo. We find that in the minutes after the bombing people called ties that were (1) close socially and (2) perceived to be in danger, that is, people who were close to the bombing point. Our main findings:...
The advantages of imaging at terahertz [THz] frequencies are well known for homeland security applications. It is possible to image through non-highly conducting media, and there is no known biological hazard. Thus, it is possible to image concealed weapons and explosives. There are also many biomedical applications of THz radiation. One problem limiting widespread use is the expense of such equipment,...
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