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DICS: Data-Informed Centroid Splitting for Decision Tree Classifiers

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The paper introduces DICS, a clustering-based framework that uses data-informed priors to construct a compact set of candidate splits for decision tree classifiers. By incorporating class-aware structure, DICS reduces the split search space, preserving predictive performance while cutting training time. The authors provide theoretical analysis and experimental results showing comparable accuracy to exhaustive search across synthetic and benchmark datasets.

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arXiv Machine Learning
4d ago

Interpretable clustering via optimal multi-way decision trees

The paper introduces ICOMT, a framework for interpretable clustering using optimal multi-way decision trees. It proposes a new discretization technique based on one-dimensional K‑means, formulates a binary linear optimization problem to ensure tree optimality, and demonstrates superior clustering accuracy and shallow tree structures on four public datasets.

By Hayato Suzuki, Shunnosuke Ikeda, Naoki Nishimura, Yuichi Takano