arXiv:2505.06731cs.LGcs.AI2025-05

让神经网络在推理时自动生成可解释的决策依据。

Deeply Explainable Artificial Neural Network

  • 将解释能力嵌入训练过程,无需事后分析
  • 每张图像推理时输出具体特征贡献度
  • 适合医疗影像等需高可信度的场景

尽管深度学习在众多领域表现卓越,其黑箱特性仍是关键领域的重大局限,尤其在医学图像分析与推断中。现有可解释性方法如SHAP、LIME和Grad-CAM通常为事后附加,带来额外计算开销,且结果常不一致或模糊。本文提出一种新型深度学习架构——深度可解释人工神经网络(DxANN),将可解释性从源头融入训练过程。与传统模型依赖外部解释工具不同,DxANN在前向传播中即可生成每个样本、每个特征的解释。基于流式框架构建,该模型兼具高精度预测与透明决策能力,特别适用于图像任务。虽然研究聚焦于医学影像,但其架构可轻松拓展至表格数据与序列数据。DxANN推动了内在可解释深度学习的发展,为信任与问责至关重要的应用提供了实用解决方案。

原文摘要 · Abstract (English)

While deep learning models have demonstrated remarkable success in numerous domains, their black-box nature remains a significant limitation, especially in critical fields such as medical image analysis and inference. Existing explainability methods, such as SHAP, LIME, and Grad-CAM, are typically applied post hoc, adding computational overhead and sometimes producing inconsistent or ambiguous results. In this paper, we present the Deeply Explainable Artificial Neural Network (DxANN), a novel deep learning architecture that embeds explainability ante hoc, directly into the training process. Unlike conventional models that require external interpretation methods, DxANN is designed to produce per-sample, per-feature explanations as part of the forward pass. Built on a flow-based framework, it enables both accurate predictions and transparent decision-making, and is particularly well-suited for image-based tasks. While our focus is on medical imaging, the DxANN architecture is readily adaptable to other data modalities, including tabular and sequential data. DxANN marks a step forward toward intrinsically interpretable deep learning, offering a practical solution for applications where trust and accountability are essential.

可解释性神经网络医学影像

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