Review helps learn better: Temporal Supervised Knowledge Distillation

• URL: http://arxiv.org/abs/2307.00811v2
• Date: Mon, 21 Aug 2023 08:45:07 GMT
• Title: Review helps learn better: Temporal Supervised Knowledge Distillation
• Authors: Dongwei Wang, Zhi Han, Yanmei Wang, Xiai Chen, Baichen Liu and Yandong Tang
• Abstract summary: We find that during the network training, the evolution of feature map follows temporal sequence property. Inspired by this observation, we propose Temporal Supervised Knowledge Distillation Review (TSKD)
• Score: 9.220654594406508
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Reviewing plays an important role when learning knowledge. The knowledge acquisition at a certain time point may be strongly inspired with the help of previous experience. Thus the knowledge growing procedure should show strong relationship along the temporal dimension. In our research, we find that during the network training, the evolution of feature map follows temporal sequence property. A proper temporal supervision may further improve the network training performance. Inspired by this observation, we propose Temporal Supervised Knowledge Distillation (TSKD). Specifically, we extract the spatiotemporal features in the different training phases of student by convolutional Long Short-term memory network (Conv-LSTM). Then, we train the student net through a dynamic target, rather than static teacher network features. This process realizes the refinement of old knowledge in student network, and utilizes it to assist current learning. Extensive experiments verify the effectiveness and advantages of our method over existing knowledge distillation methods, including various network architectures and different tasks (image classification and object detection) .

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