2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information

2021 IEEE International Conference on Acoustics, Speech and Signal Processing

6-11 June 2021 • Toronto, Ontario, Canada

Extracting Knowledge from Information
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Paper Detail

Paper IDBIO-5.4
Paper Title TUCKER DECOMPOSITION FOR EXTRACTING SHARED AND INDIVIDUAL SPATIAL MAPS FROM MULTI-SUBJECT RESTING-STATE FMRI DATA
Authors Yue Han, Qiu-Hua Lin, Dalian University of Technology, China; Li-Dan Kuang, Changsha University of Science and Technology, China; Xiao-Feng Gong, Fengyu Cong, Dalian University of Technology, China; Vince Calhoun, Georgia State University, Georgia Institute of Technology, Emory University, United States
SessionBIO-5: Neuroimaging and Neural Signal Processing
LocationGather.Town
Session Time:Tuesday, 08 June, 14:00 - 14:45
Presentation Time:Tuesday, 08 June, 14:00 - 14:45
Presentation Poster
Topic Biomedical Imaging and Signal Processing: [BIO-MIA] Medical image analysis
IEEE Xplore Open Preview  Click here to view in IEEE Xplore
Abstract Tucker decomposition (TKD) has been utilized to identify functional connectivity patterns using processed fMRI data, but seldom focuses on originally acquired fMRI data. This study proposes to decompose multi-subject fMRI data in a natural three-way of voxel × time × subject via TKD. Different from existing tensor decomposition algorithms such as canonical polyadic decomposition (CPD) for extracting shared spatial maps (SMs), we propose to extract both shared and individual SMs by exploring spatial-temporal-subject relationship contained in the core tensor. We test the proposed method using multi-subject resting-state fMRI data with comparison to CPD for evaluating shared SMs and independent vector analysis (IVA) for assessing individual SMs under different model orders. The results show that the proposed method yields better and more robust shared SMs than CPD and more consistent individual SMs than IVA, indicating the potential of TKD in providing group and individual brain networks in a high-dimensional coupling way.