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Facial expression recognition plays an increasingly important role in human behavior analysis and human computer interaction. Facial action units (AUs) coded by the Facial Action Coding System (FACS) provide rich cues for the interpretation of facial expressions. Much past work on AU analysis used only frontal view images, but natural images contain a much wider variety of poses. The FG 2017 Facial...
Facial expression recognizers based on handcrafted features have achieved satisfactory performance on many databases. Recently, deep neural networks, e. g. deep convolutional neural networks (CNNs) have been shown to boost performance on vision tasks. However, the mechanisms exploited by CNNs are not well established. In this paper, we establish the existence and utility of feature maps selective...
Terrorism becomes more severe these days, especially the attacks sponsored by Islamic State of Iraq and Syria (ISIS) or Daesh. They are experts of using social network for propaganda and recruitment, thus predicting their activities through big social network data will help to predict and avoid more serious attacks. In this paper, we analyze over 17k Twitter records of pro-ISIS fanboys over a year...
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