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Conference Publication

Online decomposition of compressive streaming data using n-l1 cluster-weighted minimization

Host Publication: Data Compression Conference

Authors: H. Van Luong, N. Deligiannis, S. Forchhammer and A. Kaup

Publication Year: 2018

Number of Pages: 10


Abstract:

We consider a decomposition method for compressive streaming data in the context ofonline compressive Robust Principle Component Analysis (RPCA). The proposed decompositionsolves an n-L1 cluster-weighted minimization to decompose a sequence of frames(or vectors), into sparse and low-rank components, from compressive measurements. Ourmethod processes a data vector of the stream per time instance from a small number ofmeasurements in contrast to conventional batch RPCA, which needs to access full data.The n-L1 cluster-weighted minimization leverages the sparse components along with theircorrelations with multiple previously-recovered sparse vectors. Moreover, the proposed minimizationcan exploit the structures of sparse components via clustering and re-weightingiteratively. The method outperforms the existing methods for both numerical data andactual video data.

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Dr. Huynh Van Luong

+32 (0)02 629 161

hvanluon@etrovub.be

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Prof. Dr. Ir. Nikolaos Deligiannis

+32 (0)02 629 168

ndeligia@etrovub.be

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