Semi-Tensor Product-Based Multi-Term Randomized T-SVD and Its Visual Applications
Updated 34 min ago · first seen 11 Sept 2026
paper_01M294FP2K9NXCGVQSG57H3HP6
- Published
- 11 Sept 2026
- T1 · 34 min ago
- arXiv
- 2609.11168
- T1 · 34 min ago
- Category
- cs.LG
- T1 · 34 min ago
Abstract
Tensor singular value decomposition (T-SVD), which is built upon the tensor-tensor product (t-product), has emerged as a powerful tool for processing high-dimensional visual data such as color images and videos. However, the standard t-product imposes strict dimensional compatibility constraints. Although extensions based on the semi-tensor product (STP) relax this restriction, their single-term formulations still suffer from limited approximation accuracy. Moreover, these deterministic methods incur high computational costs when processing large-scale tensor data. To address these issues, this paper introduces a novel semi-tensor product for third-order tensors under the t-product framework induced by arbitrary invertible linear transforms. The resulting tensor semi-tensor product breaks the rigid dimension matching requirement of the standard t-product, while retaining the closed-form property of T-SVD. Based on this construction, we develop a multi-term semi-tensor product singular value decomposition (MSTP-SVD), which integrates multiple orthogonal decomposition terms to significantly improve low-rank approximation accuracy compared with single-term schemes. To reduce the computational cost of multi-term modeling, we incorporate randomized projection and power iteration techniques into the MSTP-SVD framework, yielding an accelerated multi-term randomized semi-tensor product SVD (MRSTP-SVD) algorithm that achieves a balance between reconstruction accuracy and computational efficiency. Experiments on image and video compression and completion tasks demonstrate the effectiveness of the proposed method.
Authors 8
Xingchen Xiao (School of Mathematics, Statistics, Southwest University, Chongqing, China), Feng Zhang (School of Mathematics, Wenjin Qin (School of Mathematics, Jianjun Wang (School of Mathematics
Specification
- Official page
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
- Arxiv announce type
- new
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
- arXiv id
- 2609.11168
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
- Categories
- cs.LG
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
- Primary category
- cs.LG
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
- Published
- 11 Sept 2026
Source:arXiv (Atom API + RSS)T1observed 34 min agohigh
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T19
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34 min ago
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New paper: Semi-Tensor Product-Based Multi-Term Randomized T-SVD and Its Visual Applications
arxiv
| Source | Document | Type | Tier | Last observed | Snapshots |
|---|---|---|---|---|---|
| arXiv (Atom API + RSS) | rss.arxiv.org/rss/cs.LG | feed | T1· Official | 34 min ago | 1 |
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