An overview of robust subspace recovery

G Lerman, T Maunu - Proceedings of the IEEE, 2018 - ieeexplore.ieee.org
This paper will serve as an introduction to the body of work on robust subspace recovery.
Robust subspace recovery involves finding an underlying low-dimensional subspace in a …

Optimal Algorithms for -subspace Signal Processing

PP Markopoulos, GN Karystinos… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
We describe ways to define and calculate L 1-norm signal subspaces that are less sensitive
to outlying data than L 2-calculated subspaces. We start with the computation of the L 1 …

Efficient L1-norm principal-component analysis via bit flip**

PP Markopoulos, S Kundu… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
It was shown recently that the K L1-norm principal components (L1-PCs) of a real-valued
data matrix X∈ RD× N (N data samples of D dimensions) can be exactly calculated with cost …

Low rank approximation with entrywise l1-norm error

Z Song, DP Woodruff, P Zhong - Proceedings of the 49th Annual ACM …, 2017 - dl.acm.org
We study the ℓ1-low rank approximation problem, where for a given nxd matrix A and
approximation factor α≤ 1, the goal is to output a rank-k matrix  for which‖ A-Â‖ 1≤ α …

Purifying low-light images via near-infrared enlightened image

R Wan, B Shi, W Yang, B Wen… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Cameras usually produce low-quality images under low-light conditions. Though many
methods have been proposed to enhance the visibility of low-light images, they are mainly …

Compressed-Sensed-Domain L1-PCA Video Surveillance

Y Liu, DA Pados - IEEE Transactions on Multimedia, 2016 - ieeexplore.ieee.org
We consider the problem of foreground and background extraction from compressed-
sensed (CS) surveillance videos that are captured by a static CS camera. We propose, for …

On the link between L1-PCA and ICA

R Martın-Clemente, V Zarzoso - IEEE transactions on pattern …, 2016 - ieeexplore.ieee.org
Principal component analysis (PCA) based on L1-norm maximization is an emerging
technique that has drawn growing interest in the signal processing and machine learning …

Streaming and distributed algorithms for robust column subset selection

S Jiang, D Li, IM Li, AV Mahankali… - … on Machine Learning, 2021 - proceedings.mlr.press
We give the first single-pass streaming algorithm for Column Subset Selection with respect
to the entrywise $\ell_p $-norm with $1\leq p< 2$. We study the $\ell_p $ norm loss since it is …

Reduced-rank L1-norm principal-component analysis with performance guarantees

H Kamrani, AZ Asli, PP Markopoulos… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Standard Principal-Component Analysis (PCA) is known to be sensitive to outliers among
the processed data. On the other hand, L1-norm-based PCA (L1-PCA) exhibits sturdy …

Video background tracking and foreground extraction via L1-subspace updates

M Pierantozzi, Y Liu, DA Pados… - … Sensing V: From …, 2016 - spiedigitallibrary.org
We consider the problem of online foreground extraction from compressed-sensed (CS)
surveillance videos. A technically novel approach is suggested and developed by which the …