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- W3195735432 abstract "Low-tubal-rank tensor approximation has been proposed to analyze large-scale and multidimensional data. However, finding such an accurate approximation is challenging in the streaming setting, due to the limited computational resources. To alleviate this issue, this article extends a popular matrix sketching technique, namely, frequent directions (FDs), for constructing an efficient and accurate low-tubal-rank tensor approximation from streaming data based on the tensor singular value decomposition (t-SVD). Specifically, the new algorithm allows the tensor data to be observed slice by slice but only needs to maintain and incrementally update a much smaller sketch, which could capture the principal information of the original tensor. The rigorous theoretical analysis shows that the approximation error of the new algorithm can be arbitrarily small when the sketch size grows linearly. Extensive experimental results on both synthetic and real multidimensional data further reveal the superiority of the proposed algorithm compared with other sketching algorithms for getting low-tubal-rank approximation, in terms of both efficiency and accuracy." @default.
- W3195735432 created "2021-08-30" @default.
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- W3195735432 date "2022-01-01" @default.
- W3195735432 modified "2023-09-26" @default.
- W3195735432 title "Effective Streaming Low-Tubal-Rank Tensor Approximation via Frequent Directions" @default.
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- W3195735432 doi "https://doi.org/10.1109/tnnls.2022.3181097" @default.
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