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Me-NDT: Neural-backed Decision Tree for visual Explainability of deep Medical models

Abstract : Despite the progress of deep learning on medical imaging, there is still not a true understanding of what networks learn and of how decisions are reached. Here, we address this by proposing a Visualized Neural-backed Decision Tree for Medical image analysis, Me-NDT. It is a CNN with a tree-based structure template that allows for both classification and visualization of firing neurons, thus offering interpretability. We also introduce node and path losses that allow Me-NDT to consider the entire path instead of isolated nodes. Our experiments on brain CT and chest radiographs outperform all baselines. Overall, Me-NDT is a lighter, comprehensively explanatory model, of great value for clinical practice.
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https://hal-polytechnique.archives-ouvertes.fr/hal-03353559
Contributor : Vicky Kalogeiton Connect in order to contact the contributor
Submitted on : Friday, September 24, 2021 - 10:42:54 AM
Last modification on : Sunday, September 26, 2021 - 3:26:06 AM

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  • HAL Id : hal-03353559, version 1

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Guanghui Fu, Ruiqian Wang, Jianqiang Li, Maria Vakalopoulou, Vicky Kalogeiton. Me-NDT: Neural-backed Decision Tree for visual Explainability of deep Medical models. Medical Imaging with Deep Learning 2021, Jul 2021, Lübeck (virtual), Germany. ⟨hal-03353559⟩

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