Author

Hao Tian

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#machine learning Preprint Oct 2025

Isolation-based Spherical Ensemble Representations for Tabular Anomaly Detection

This work proposes ISER (Isolation-based Spherical Ensemble Representations) that extends existing isolation-based methods by using hypersphere radii as a monotonic transformation of local density characteristics while maintaining linear time and constant space complexity w.r.t. the dataset size.

Yang Cao, Si-Kun Yang, Hao Tian et al. · 0 citations