relation: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4712/ title: Sparse Subspace Tracking in High Dimensions creator: Le, Trung Thanh creator: Karim, Abed Meraim creator: Adel, Hafiane creator: Nguyen, Linh Trung subject: Electronics and Communications subject: ISI/Scopus indexed conference description: We studied the problem of sparse subspace tracking in the high-dimensional regime where the dimension is comparable to or much larger than the sample size. Leveraging power iteration and thresholding methods, a new provable algorithm called OPIT was derived for tracking the sparse principal subspace of data streams over time. We also presented a theoretical result on its convergence to verify its consistency in high dimensions. Several experiments were carried out on both synthetic and real data to demonstrate the effectiveness of OPIT. type: Conference or Workshop Item type: PeerReviewed format: application/pdf language: en identifier: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4712/1/ICASSP2022_published.pdf identifier: Le, Trung Thanh and Karim, Abed Meraim and Adel, Hafiane and Nguyen, Linh Trung Sparse Subspace Tracking in High Dimensions. In: ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 7-13 May, 2022, Singapore. (In Press)