eprintid: 4712 rev_number: 8 eprint_status: archive userid: 381 dir: disk0/00/00/47/12 datestamp: 2022-03-21 00:30:45 lastmod: 2022-03-21 00:30:45 status_changed: 2022-03-21 00:30:45 type: conference_item metadata_visibility: show creators_name: Le, Trung Thanh creators_name: Karim, Abed Meraim creators_name: Adel, Hafiane creators_name: Nguyen, Linh Trung creators_id: letrungthanhtbt@gmail.com creators_id: karim.abed-meraim@univ-orleans.fr creators_id: adel.hafiane@insa-cvl.fr creators_id: linhtrung@vnu.edu.vn title: Sparse Subspace Tracking in High Dimensions ispublished: inpress subjects: ECE subjects: isi_scopus_conf divisions: avitech abstract: 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. date_type: completed full_text_status: public pres_type: paper event_title: ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) event_location: Singapore event_dates: 7-13 May, 2022 event_type: conference refereed: TRUE citation: 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) document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/4712/1/ICASSP2022_published.pdf