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In this paper, we go beyond recognizing the actions of individuals and focus on group activities. This is motivated from the observation that human actions are rarely performed in isolation; the contextual information of what other people in the scene are doing provides a useful cue for understanding high-level activities. We propose a novel framework for recognizing group activities which jointly...
Multi-instance learning (MIL) has many applications, including image and text categorization. One of the most effective approaches to MIL is by using support vector machines with multi-instance kernels. In this paper we propose a multi-instance kernel, called MIR-kernel, that takes into account the relational information of instances when computing similarities between bags. The relational information...
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