Teachers cooperation: team-knowledge distillation for multiple cross-domain few-shot learning

Zhong JI, Jingwei NI, Xiyao LIU, Yanwei PANG

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Front. Comput. Sci. ›› 2023, Vol. 17 ›› Issue (2) : 172312. DOI: 10.1007/s11704-022-1250-2
RESEARCH ARTICLE

Teachers cooperation: team-knowledge distillation for multiple cross-domain few-shot learning

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Abstract

Although few-shot learning (FSL) has achieved great progress, it is still an enormous challenge especially when the source and target set are from different domains, which is also known as cross-domain few-shot learning (CD-FSL). Utilizing more source domain data is an effective way to improve the performance of CD-FSL. However, knowledge from different source domains may entangle and confuse with each other, which hurts the performance on the target domain. Therefore, we propose team-knowledge distillation networks (TKD-Net) to tackle this problem, which explores a strategy to help the cooperation of multiple teachers. Specifically, we distill knowledge from the cooperation of teacher networks to a single student network in a meta-learning framework. It incorporates task-oriented knowledge distillation and multiple cooperation among teachers to train an efficient student with better generalization ability on unseen tasks. Moreover, our TKD-Net employs both response-based knowledge and relation-based knowledge to transfer more comprehensive and effective knowledge. Extensive experimental results on four fine-grained datasets have demonstrated the effectiveness and superiority of our proposed TKD-Net approach.

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Keywords

cross-domain few-shot learning / meta-learning / knowledge distillation / multiple teachers

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Zhong JI, Jingwei NI, Xiyao LIU, Yanwei PANG. Teachers cooperation: team-knowledge distillation for multiple cross-domain few-shot learning. Front. Comput. Sci., 2023, 17(2): 172312 https://doi.org/10.1007/s11704-022-1250-2

Zhong Ji received the PhD degree in signal and information processing from Tianjin University, China in 2008. He is currently a Professor with the School of Electrical and Information Engineering, Tianjin University, China. He has authored over 80 scientific papers. His current research interests include multimedia understanding, zero/few-shot learning, cross-modal analysis, and video summarization

Jingwei Ni received the BS degree in electronic and information engineering from Dalian University of Technology, China in 2019. She is currently pursuing the MS degree in the School of Electrical and Information Engineering, Tianjin University, China. Her current research interests include few-shot learning and computer vision

Xiyao Liu received the BS degree in telecommunication engineering from Tianjin University, China in 2015. She is currently pursuing a PhD degree in the School of Electrical and Information Engineering, Tianjin University, China. Her research interests include fewshot learning, human-object interaction, and computer vision

Yanwei Pang received the PhD degree in electronic engineering from the University of Science and Technology of China, China in 2004. He is currently a Professor with the School of Electrical and Information Engineering, Tianjin University, China. He has authored over 120 scientific papers. His current research interests include object detection and recognition, vision in bad weather, and computer vision

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (NSFC) (Grant No. 62176178), and the Central Funds Guiding the Local Science and Technology Development (206Z5001G).

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