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The recent decade has witnessed remarkable developments of SIFT-based approaches for image retrieval. However, such approaches are inherently insufficient in handling the semantic gap and large viewpoint changes, leading to inferior performance. To address these limitations, this paper extends SIFT-based match kernels by integrating the match functions for SIFT and CNN features. Specifically, a thresholded...
Nowadays, the Infrastructure as a Service (IaaS) cloud has become the new target of attackers and the security of virtual machine (VM) in cloud is attracting more and more attention. In this pater, we propose to use virtualization to combine information of system level with that of network level and monitor the behavior of VM at the granularity of process. Based on Xen hypervisor, we implement this...
Because of a large number of micro-blog's junk posts, how to instantly browse hot topics in micro-blog is faced with severe challenges. We propose a new extraction algorithm of hot topics to remove the false hot topics. The algorithm sets a group of parameters what is a determine condition. Parameters contain word frequency, users' number, occurrence number, users' discrete degrees, and time distribution...
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