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Web 2.0 has become an effective grassroots communication platform for extremists to promote their ideas, share resources, and communicate among each other. As an important component of Web 2.0, online video sharing sites such as YouTube and Google video have also been utilized by extremist groups to distribute videos. This study presented a framework for identifying extremist videos in online video...
As the Internet and multimedia technology develops, the content security of the multimedia has become more and more important. To distinguish various contents in the multimedia, we present an approach for automatic video classification based on combination of MPEG-7 descriptors and second-prediction strategy. In this paper, color, texture, shape and motion descriptors are extracted from five different...
As a growing number of Internet users are exposed to objectionable videos, the need for preventing those videos from being spread through the Internet has increased significantly. In this paper, a novel multilevel hierarchical system for detecting objectionable videos is presented. It consists of three phases using multiple features in different temporal domains. In the first phase, early detection...
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