arXiv:2504.05125cs.LGcs.AI2025-04

提出可解释的模糊聚类方法,让聚类结果像规则一样清晰可读。

Interpretable Style Takagi-Sugeno-Kang Fuzzy Clustering

  • 基于TSK模糊推理构建聚类规则,用结论向量定义簇
  • 引入风格矩阵捕捉数据组间的细微差异,提升表达能力
  • 适合需要理解聚类逻辑的场景,如医疗、金融数据分析

聚类是挖掘数据潜在知识的重要手段,但多数算法忽视聚类结果的可解释性。由于数据具有同质性,不同数据组存在各自独特的风格特征。本文提出一种可解释的风格TSK模糊聚类(IS-TSK-FC)算法,其聚类行为完全由学习到的模糊规则决定。样本被归入对应规则结论向量所表示的簇中,从而详细揭示聚类生成过程,实现决策过程的可解释。通过引入一系列风格矩阵,捕捉簇内及簇间风格特征与差异,增强规则的数据表达能力。在确定所有规则前提后,采用交替优化策略迭代求解。在多个基准数据集上进行的大量实验验证了该方法作为可解释聚类工具的有效性。特别地,在显式风格的数据案例中,IS-TSK-FC展现出优越的聚类性能。源码已公开于 https://github.com/gusuhang10/IS-TSK-FC。

原文摘要 · Abstract (English)

Clustering is an efficient and essential technique for exploring latent knowledge of data. However, limited attention has been given to the interpretability of the clusters detected by most clustering algorithms. In addition, due to the homogeneity of data, different groups of data have their own homogeneous styles. In this paper, the above two aspects are considered, and an interpretable style Takagi-Sugeno-Kang (TSK) fuzzy clustering (IS-TSK-FC) algorithm is proposed. The clustering behavior of IS-TSK-FC is fully guided by the TSK fuzzy inference on fuzzy rules. In particular, samples are grouped into clusters represented by the corresponding consequent vectors of all fuzzy rules learned in an unsupervised manner. This can explain how the clusters are generated in detail, thus making the underlying decision-making process of the IS-TSK-FC interpretable. Moreover, a series of style matrices are introduced to facilitate the consequents of fuzzy rules in IS-TSK-FC by capturing the styles of clusters as well as the nuances between different styles. Consequently, all the fuzzy rules in IS-TSK-FC have powerful data representation capability. After determining the antecedents of all the fuzzy rules, the optimization problem of IS-TSK-FC can be iteratively solved in an alternation manner. The effectiveness of IS-TSK-FC as an interpretable clustering tool is validated through extensive experiments on benchmark datasets with unknown implicit/explicit styles. Specially, the superior clustering performance of IS-TSK-FC is demonstrated on case studies where different groups of data present explicit styles. The source code of IS-TSK-FC can be downloaded from https://github.com/gusuhang10/IS-TSK-FC.

聚类模糊系统可解释性风格建模

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