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Online Social Networks (OSNs) have become a rewarding target for attackers. One particularly popular attack is the Sybil attack, in which the adversary creates many fake accounts called Sybils in order to, for instance, distribute spam or manipulate voting results. A first generation of defense systems tried to detect these Sybils by analyzing changes in the structure of the OSN graph---unfortunately...
Fine registration is a fundamental step for further application of remote sensing images. Focused on deficiencies in traditional manual registration, this paper presents a new method for automatic fine registration of multi-spectral images. To make the most of image information, the algorithm detects and matches feature points in the selected bands. Then pick up the common control points which contain...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.