Class-Incremental Learning for Action Recognition in Videos

• URL: http://arxiv.org/abs/2203.13611v1
• Date: Fri, 25 Mar 2022 12:15:49 GMT
• Title: Class-Incremental Learning for Action Recognition in Videos
• Authors: Jaeyoo Park, Minsoo Kang, Bohyung Han
• Abstract summary: We tackle catastrophic forgetting problem in the context of class-incremental learning for video recognition. Our framework addresses this challenging task by introducing time-channel importance maps and exploiting the importance maps for learning the representations of incoming examples. We evaluate the proposed approach on brand-new splits of class-incremental action recognition benchmarks constructed upon the UCF101, HMDB51, and Something-Something V2 datasets.
• Score: 44.923719189467164
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We tackle catastrophic forgetting problem in the context of class-incremental learning for video recognition, which has not been explored actively despite the popularity of continual learning. Our framework addresses this challenging task by introducing time-channel importance maps and exploiting the importance maps for learning the representations of incoming examples via knowledge distillation. We also incorporate a regularization scheme in our objective function, which encourages individual features obtained from different time steps in a video to be uncorrelated and eventually improves accuracy by alleviating catastrophic forgetting. We evaluate the proposed approach on brand-new splits of class-incremental action recognition benchmarks constructed upon the UCF101, HMDB51, and Something-Something V2 datasets, and demonstrate the effectiveness of our algorithm in comparison to the existing continual learning methods that are originally designed for image data.

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