arXiv:2506.06986cs.LG2025-06

用超块构建可解释分类模型,兼顾透明度与性能。

Fully Explainable Classification Models Using Hyperblocks

  • 基于属性上下界划分超块,实现决策逻辑可视。
  • 在WBC数据集上降低模型复杂度,准确率保持不变。
  • 适合医疗、金融等需信任透明决策的领域。

在现有超块(Hyperblocks)方法基础上,本文聚焦提升可解释性、缩短训练时间并降低模型复杂度,同时不牺牲准确性。该系统使领域专家无需机器学习背景即可直接理解模型决策逻辑。通过引入一系列超块简化算法——包括去除冗余属性、基于重叠分析移除冗余块、构建析取单元——有效消除多余参数,显著减小模型规模而不影响分类能力。为增强鲁棒性,提出可解释的备用机制:对未被任何超块覆盖的样本使用k-NN分类器,确保数据全覆盖且保持透明。实验表明,该方法可扩展至高维大容量数据集,在WBC(9维)数据集上实现强预测性能且复杂度大幅降低;在MNIST(784维)上通过调优与简化持续优化,展现出作为黑箱模型透明替代方案的巨大潜力,尤其适用于对可信度、清晰性和控制力要求高的场景。

原文摘要 · Abstract (English)

Building on existing work with Hyperblocks, which classify data using minimum and maximum bounds for each attribute, we focus on enhancing interpretability, decreasing training time, and reducing model complexity without sacrificing accuracy. This system allows subject matter experts (SMEs) to directly inspect and understand the model's decision logic without requiring extensive machine learning expertise. To reduce Hyperblock complexity while retaining performance, we introduce a suite of algorithms for Hyperblock simplification. These include removing redundant attributes, removing redundant blocks through overlap analysis, and creating disjunctive units. These methods eliminate unnecessary parameters, dramatically reducing model size without harming classification power. We increase robustness by introducing an interpretable fallback mechanism using k-Nearest Neighbor (k-NN) classifiers for points not covered by any block, ensuring complete data coverage while preserving model transparency. Our results demonstrate that interpretable models can scale to high-dimensional, large-volume datasets while maintaining competitive accuracy. On benchmark datasets such as WBC (9-D), we achieve strong predictive performance with significantly reduced complexity. On MNIST (784-D), our method continues to improve through tuning and simplification, showing promise as a transparent alternative to black-box models in domains where trust, clarity, and control are crucial.

可解释模型超块透明决策高维分类

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