eprintid: 4561 rev_number: 7 eprint_status: archive userid: 381 dir: disk0/00/00/45/61 datestamp: 2021-07-06 02:46:57 lastmod: 2021-07-06 02:46:57 status_changed: 2021-07-06 02:46:57 type: article metadata_visibility: show creators_name: Le, Trung Thanh creators_name: Nguyen, Viet Dung creators_name: Nguyen, Linh Trung creators_name: Abed-Meraim, Karim creators_id: letrungthanhtbt@gmail.com creators_id: nvdung1987@gmail.com creators_id: linhtrung@vnu.edu.vn creators_id: karim.abed-meraim@univ-orleans.fr title: Robust Subspace Tracking Algorithms in Signal Processing: A Brief Survey ispublished: pub subjects: Communications subjects: ElectronicsandComputerEngineering divisions: avitech abstract: Principal component analysis (PCA) and subspace estimation (SE) are popular data analysis tools and used in a wide range of applications. The main interest in PCA/SE is for dimensionality reduction and low-rank approximation purposes. The emergence of big data streams have led to several essential issues for performing PCA/SE. Among them are (i) the size of such data streams increases over time, (ii) the underlying models may be time-dependent, and iii) problem of dealing with the uncertainty and incompleteness in data. A robust variant of PCA/SE for such data streams, namely robust online PCA or robust subspace tracking (RST), has been introduced as a good alternative. The main goal of this paper is to provide a brief survey on recent RST algorithms in signal processing. Particularly, we begin this survey by introducing the basic ideas of the RST problem. Then, different aspects of RST are reviewed with respect to different kinds of non-Gaussian noises and sparse constraints. Our own contributions on this topic are also highlighted. date: 2021-06 date_type: published publisher: REV official_url: https://rev-jec.org/index.php/rev-jec/article/view/270 full_text_status: none publication: REV Journal on Electronics and Communications volume: 11 number: 1-2 pagerange: 16-25 refereed: TRUE issn: 1859-387X citation: Le, Trung Thanh and Nguyen, Viet Dung and Nguyen, Linh Trung and Abed-Meraim, Karim (2021) Robust Subspace Tracking Algorithms in Signal Processing: A Brief Survey. REV Journal on Electronics and Communications, 11 (1-2). pp. 16-25. ISSN 1859-387X