Abstract

Model distillation is an effective and widely used technique to transfer knowledge from a teacher to a student network. The typical application is to transfer from a powerful large network or ensemble to a small network, in order to meet the low-memory or fast execution requirements. In this paper, we present a deep mutual learning (DML) strategy. Different from the one-way transfer between a static pre-defined teacher and a student in model distillation, with DML, an ensemble of students learn collaboratively and teach each other throughout the training process. Our experiments show that a variety of network architectures benefit from mutual learning and achieve compelling results on both category and instance recognition tasks. Surprisingly, it is revealed that no prior powerful teacher network is necessary - mutual learning of a collection of simple student networks works, and moreover outperforms distillation from a more powerful yet static teacher.

Keywords

Computer scienceDistillationArtificial intelligenceProcess (computing)Variety (cybernetics)Transfer of learningMachine learningTransfer (computing)Simple (philosophy)Parallel computingProgramming language

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Year
2018
Type
article
Citations
1668
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Cite This

Ying Zhang, Tao Xiang, Timothy M. Hospedales et al. (2018). Deep Mutual Learning. 2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition . https://doi.org/10.1109/cvpr.2018.00454

Identifiers

DOI
10.1109/cvpr.2018.00454
arXiv
1706.00384

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Data completeness: 84%