Information Theoretic Representation Distillation

• URL: http://arxiv.org/abs/2112.00459v1
• Date: Wed, 1 Dec 2021 12:39:50 GMT
• Title: Information Theoretic Representation Distillation
• Authors: Roy Miles, Adri\'an L\'opez Rodr\'iguez, Krystian Mikolajczyk
• Abstract summary: We forge an alternative connection between information theory and knowledge distillation using a recently proposed entropy-like functional. Our method achieves competitive performance to state-of-the-art on the knowledge distillation and cross-model transfer tasks. We shed light to a new state-of-the-art for binary quantisation.
• Score: 20.802135299032308
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Despite the empirical success of knowledge distillation, there still lacks a theoretical foundation that can naturally lead to computationally inexpensive implementations. To address this concern, we forge an alternative connection between information theory and knowledge distillation using a recently proposed entropy-like functional. In doing so, we introduce two distinct complementary losses which aim to maximise the correlation and mutual information between the student and teacher representations. Our method achieves competitive performance to state-of-the-art on the knowledge distillation and cross-model transfer tasks, while incurring significantly less training overheads than closely related and similarly performing approaches. We further demonstrate the effectiveness of our method on a binary distillation task, whereby we shed light to a new state-of-the-art for binary quantisation. The code, evaluation protocols, and trained models will be publicly available.

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