arXiv:2603.05423cs.LG2026-03被引 3

用可解释的原型部件建模医疗表格数据,兼顾准确与可信。

An interpretable prototype parts-based neural network for medical tabular data

  • 通过可训练的特征分块学习患者数据中的典型模式。
  • 在多个医疗数据集上表现媲美主流模型,且预测过程透明。
  • 适合需要可解释性决策支持的临床场景。

在医疗等关键领域,模型决策的可解释性与准确性同等重要。受计算机视觉中原型部件神经网络的启发,我们提出一种专为医疗表格数据设计的新模型,需对诊断结果标准值进行离散化处理。不同于依赖空间结构的视觉模型,该方法在描述患者的特征上进行可训练的分块操作,从结构化数据中学习有意义的原型部件,以二值或离散特征子集形式表示。这使得模型能以人类可读的方式表达原型,与临床语言和病例推理一致。所提神经网络具有内在可解释性,通过将患者特征与潜在空间中学习到的原型对比,实现基于概念的可解释预测。实验表明,该模型在多个医疗基准数据集上的分类性能可与广泛使用的基线模型媲美,同时提供透明性,弥合了临床决策支持中预测性能与可解释性之间的差距。

原文摘要 · Abstract (English)

The ability to interpret machine learning model decisions is critical in such domains as healthcare, where trust in model predictions is as important as their accuracy. Inspired by the development of prototype parts-based deep neural networks in computer vision, we propose a new model for tabular data, specifically tailored to medical records, that requires discretization of diagnostic result norms. Unlike the original vision models that rely on the spatial structure, our method employs trainable patching over features describing a patient, to learn meaningful prototypical parts from structured data. These parts are represented as binary or discretized feature subsets. This allows the model to express prototypes in human-readable terms, enabling alignment with clinical language and case-based reasoning. Our proposed neural network is inherently interpretable and offers interpretable concept-based predictions by comparing the patient's description to learned prototypes in the latent space of the network. In experiments, we demonstrate that the model achieves classification performance competitive to widely used baseline models on medical benchmark datasets, while also offering transparency, bridging the gap between predictive performance and interpretability in clinical decision support.

可解释性医疗表数据原型网络

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