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In online social networks (OSNs), highly-connected users are generally more capable to trigger viral diffusion. However, recent research demonstrates that ordinary users who only have a few connections can also cause large-scale diffusion. In this paper, we study the relation between the global spreading influence and the local connections of users to theoretically explain this phenomenon. We focus...
Previous work, in the area of defense systems has focused on developing a firewall like structure, in order to protect applications from attacks. The major drawback for implementing security in general, is that it affects the performance of the application they are trying to protect. In fact, most developers avoid implementing security at all. With the coming of new multicore systems, we might at...
In this paper, a composite descriptor for shape retrieval is proposed. The composite descriptor is obtained based upon corner-points and shape region. In an earlier paper, we proposed a composite descriptor based on shape region and shape contour, however, the descriptor was not effective for all perspective and geometric transformations. Hence, we modify the composite descriptor by replacing contour...
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