Abstract
Because of their state-of-the-art performance in computer vision, CNNs are becoming increasingly popular in a variety of fields, including medicine. However, as neural networks are black box function approximators, it is difficult, if not impossible, for a medical expert to reason about their output. This could potentially result in the expert distrusting the network when he or she does not agree with its output. In such a case, explaining why the CNN makes a certain decision becomes valuable information. In this paper, we try to open the black box of the CNN by inspecting and visualizing the learned feature maps, in the field of dermatology. We show that, to some extent, CNNs focus on features similar to those used by dermatologists to make a diagnosis. However, more research is required for fully explaining their output.
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Notes
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We refer the reader to [10] for an in-depth survey on deep learning in medical analysis.
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Van Molle, P., De Strooper, M., Verbelen, T., Vankeirsbilck, B., Simoens, P., Dhoedt, B. (2018). Visualizing Convolutional Neural Networks to Improve Decision Support for Skin Lesion Classification. In: Stoyanov, D., et al. Understanding and Interpreting Machine Learning in Medical Image Computing Applications. MLCN DLF IMIMIC 2018 2018 2018. Lecture Notes in Computer Science(), vol 11038. Springer, Cham. https://doi.org/10.1007/978-3-030-02628-8_13
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DOI: https://doi.org/10.1007/978-3-030-02628-8_13
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