Explaining Representation by Mutual Information

03/28/2021

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by   Lifeng Gu, et al.

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Science is used to discover the law of world. Machine learning can be used to discover the law of data. In recent years, there are more and more research about interpretability in machine learning community. We hope the machine learning methods are safe, interpretable, and they can help us to find meaningful pattern in data. In this paper, we focus on interpretability of deep representation. We propose a interpretable method of representation based on mutual information, which summarizes the interpretation of representation into three types of information between input data and representation. We further proposed MI-LR module, which can be inserted into the model to estimate the amount of information to explain the model's representation. Finally, we verify the method through the visualization of the prototype network.