通过数学优化进行聚类与基于规则的解读

On clustering and interpreting with rules by means of mathematical optimization

Computers and Operations Research · 2023
被引 16
ABS 3

中文导读

提出一种新方法,同时将个体分配到簇并给出基于规则的簇解释,通过优化同质性、准确性和独特性三个目标,使聚类结果更易理解。

Abstract

In this paper, we make Cluster Analysis more interpretable with a new approach that simultaneously allocates individuals to clusters and gives rule-based explanations to each cluster. The traditional homogeneity metric in clustering, namely the sum of the dissimilarities between individuals in the same cluster, is enriched by considering also, for each cluster and its associated explanation, two explainability criteria, namely, the accuracy of the explanation, i.e., how many individuals within the cluster satisfy its explanation, and the distinctiveness of the explanation, i.e., how many individuals outside the cluster satisfy its explanation. Finding the clusters and the explanations optimizing a joint measure of homogeneity, accuracy, and distinctiveness is formulated as a multi-objective Mixed Integer Linear Optimization problem, from which non-dominated solutions are generated. Our approach is tested on real-world datasets.

聚类分析可解释性数学优化数据挖掘