[1]PAN Yuyan,ZHANG De,LI Zhuangju.Nonconvex TRPCA algorithm combined with low-rank pre-separation and random jitter mechanism[J].CAAI Transactions on Intelligent Systems,2025,20(4):822-837.[doi:10.11992/tis.202406003]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
20
Number of periods:
2025 4
Page number:
822-837
Column:
学术论文—机器学习
Public date:
2025-08-05
- Title:
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Nonconvex TRPCA algorithm combined with low-rank pre-separation and random jitter mechanism
- Author(s):
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PAN Yuyan; ZHANG De; LI Zhuangju
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School of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
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- Keywords:
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principal component analysis; tensor; image denoising; image processing; machine learning; computer application; signal processing; singular value decomposition
- CLC:
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TP391
- DOI:
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10.11992/tis.202406003
- Abstract:
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To address the issue of information extraction bias caused by uniform shrinkage of singular values in tensor robust principal component analysis (TRPCA) during low-rank structure recovery, this study considered treating singular values differently, using a nonconvex weighted tensor Schatten-p norm (0<p<1) to analyze tensor data, which reduced the penalty for singular values. In order to solve the problem of severe data damage that is difficult to recover, a low-rank pre-separation method was used to realize the pre-separation of the approximate low-rank component and the approximate sparse component. To enhance the correlation among high-order tensors while reducing the sensitivity of data to specific noise, the random jitter regularizer mechanism was proposed to optimize the selected random regions for the pre-separated components respectively, which constrained the complexity of the model by using the randomness of the noise information to regularize the algorithm. Finally, experiments were conducted on high-dimensional data recovery using different types of image datasets, including color images, MRI images, hyperspectral and multispectral images, and grayscale images. The results show that the proposed method significantly outperforms other TRPCA approaches in image recovery performance and maintains advantages even under severe data corruption. It effectively extracts principal component information while reducing dependence on specific noise patterns, demonstrating strong robustness and adaptability. This method can serve as a valuable reference for TRPCA-based image recovery applications.