Towards Robust Nonlinear Subspace Clustering: A Kernel Learning Approach

Fuente: arXiv
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Auteurs principaux: Xu, Kunpeng, Chen, Lifei, Wang, Shengrui
Format: Preprint
Publié: 2025
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author Xu, Kunpeng
Chen, Lifei
Wang, Shengrui
author_facet Xu, Kunpeng
Chen, Lifei
Wang, Shengrui
contents Kernel-based subspace clustering, which addresses the nonlinear structures in data, is an evolving area of research. Despite noteworthy progressions, prevailing methodologies predominantly grapple with limitations relating to (i) the influence of predefined kernels on model performance; (ii) the difficulty of preserving the original manifold structures in the nonlinear space; (iii) the dependency of spectral-type strategies on the ideal block diagonal structure of the affinity matrix. This paper presents DKLM, a novel paradigm for kernel-induced nonlinear subspace clustering. DKLM provides a data-driven approach that directly learns the kernel from the data's self-representation, ensuring adaptive weighting and satisfying the multiplicative triangle inequality constraint, which enhances the robustness of the learned kernel. By leveraging this learned kernel, DKLM preserves the local manifold structure of data in a nonlinear space while promoting the formation of an optimal block-diagonal affinity matrix. A thorough theoretical examination of DKLM reveals its relationship with existing clustering paradigms. Comprehensive experiments on synthetic and real-world datasets demonstrate the effectiveness of the proposed method.
format Preprint
id arxiv_https___arxiv_org_abs_2501_06368
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Towards Robust Nonlinear Subspace Clustering: A Kernel Learning Approach
Xu, Kunpeng
Chen, Lifei
Wang, Shengrui
Machine Learning
Computer Vision and Pattern Recognition
Kernel-based subspace clustering, which addresses the nonlinear structures in data, is an evolving area of research. Despite noteworthy progressions, prevailing methodologies predominantly grapple with limitations relating to (i) the influence of predefined kernels on model performance; (ii) the difficulty of preserving the original manifold structures in the nonlinear space; (iii) the dependency of spectral-type strategies on the ideal block diagonal structure of the affinity matrix. This paper presents DKLM, a novel paradigm for kernel-induced nonlinear subspace clustering. DKLM provides a data-driven approach that directly learns the kernel from the data's self-representation, ensuring adaptive weighting and satisfying the multiplicative triangle inequality constraint, which enhances the robustness of the learned kernel. By leveraging this learned kernel, DKLM preserves the local manifold structure of data in a nonlinear space while promoting the formation of an optimal block-diagonal affinity matrix. A thorough theoretical examination of DKLM reveals its relationship with existing clustering paradigms. Comprehensive experiments on synthetic and real-world datasets demonstrate the effectiveness of the proposed method.
title Towards Robust Nonlinear Subspace Clustering: A Kernel Learning Approach
topic Machine Learning
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2501.06368