Large-Scale Subspace Clustering Based on Purity Kernel Tensor Learning

Author:

Zheng Yilu12ORCID,Zhao Shuai3ORCID,Zhang Xiaoqian3,Xu Yinlong1,Peng Lifan3

Affiliation:

1. School of Computer Science and Technology, University of Science and Technology of China, Hefei 230026, China

2. School of Computer Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China

3. School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China

Abstract

In conventional subspace clustering methods, affinity matrix learning and spectral clustering algorithms are widely used for clustering tasks. However, these steps face issues, including high time consumption and spatial complexity, making large-scale subspace clustering (LS2C) tasks challenging to execute effectively. To address these issues, we propose a large-scale subspace clustering method based on pure kernel tensor learning (PKTLS2C). Specifically, we design a pure kernel tensor learning (PKT) method to acquire as much data feature information as possible while ensuring model robustness. Next, we extract a small sample dataset from the original data and use PKT to learn its affinity matrix while simultaneously training a deep encoder. Finally, we apply the trained deep encoder to the original large-scale dataset to quickly obtain its projection sparse coding representation and perform clustering. Through extensive experiments on large-scale real datasets, we demonstrate that the PKTLS2C method outperforms existing LS2C methods in clustering performance.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Sichuan Province

University of Science and Technology of Southwest

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

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