27 February 2018 Expert identification of visual primitives used by CNNs during mammogram classification
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Abstract
This work interprets the internal representations of deep neural networks trained for classification of diseased tissue in 2D mammograms. We propose an expert-in-the-loop inter- pretation method to label the behavior of internal units in convolutional neural networks (CNNs). Expert radiologists identify that the visual patterns detected by the units are correlated with meaningful medical phenomena such as mass tissue and calcificated vessels. We demonstrate that several trained CNN models are able to produce explanatory descriptions to support the final classification decisions. We view this as an important first step toward interpreting the internal representations of medical classification CNNs and explaining their predictions.
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Jimmy Wu, Diondra Peck, Scott Hsieh, Vandana Dialani, Constance D. Lehman, Bolei Zhou, Vasilis Syrgkanis, Lester Mackey, Genevieve Patterson, "Expert identification of visual primitives used by CNNs during mammogram classification", Proc. SPIE 10575, Medical Imaging 2018: Computer-Aided Diagnosis, 105752T (27 February 2018); doi: 10.1117/12.2293890; https://doi.org/10.1117/12.2293890
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