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CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis

Abstract: 

Sequential dictionary learning algorithms has gained widespread acceptance in functional magnetic resonance imaging (fMRI) data analysis. However, many problems in fMRI data analysis involve the analysis of multiple-subject fMRI data sets and the existing algorithms do not extend naturally to this case. In this paper we propose an algorithm dedicated to multiple-subject fMRI data analysis. The algorithm is named SMSDL for sequential multi-subject dictionary learning and differs from existing dictionary learning algorithms in its dictionary update stage. This algorithm is derived by using a variation of the power algorithm in the dictionary update stage to extract the common information among the multiple-subject fMRI data sets. The results of the proposed dictionary learning algorithm is a set of time courses which are common to the whole group of subjects and an individual spatial response pattern for each of the subjects in the group. The performance of the proposed dictionary learning algorithm are illustrated through a simulation and an application on real fMRI datasets.

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Paper Details

Authors:
Abd-Krim Seghouane, Asif Iqbal
Submitted On:
11 September 2017 - 10:10pm
Short Link:
Type:
Poster
Event:
Presenter's Name:
Abd-Krim Seghouane
Paper Code:
1229
Document Year:
2017
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Poster for ICIP 2017

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[1] Abd-Krim Seghouane, Asif Iqbal, "CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis", IEEE SigPort, 2017. [Online]. Available: http://sigport.org/1923. Accessed: Sep. 21, 2017.
@article{1923-17,
url = {http://sigport.org/1923},
author = {Abd-Krim Seghouane; Asif Iqbal },
publisher = {IEEE SigPort},
title = {CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis},
year = {2017} }
TY - EJOUR
T1 - CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis
AU - Abd-Krim Seghouane; Asif Iqbal
PY - 2017
PB - IEEE SigPort
UR - http://sigport.org/1923
ER -
Abd-Krim Seghouane, Asif Iqbal. (2017). CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis. IEEE SigPort. http://sigport.org/1923
Abd-Krim Seghouane, Asif Iqbal, 2017. CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis. Available at: http://sigport.org/1923.
Abd-Krim Seghouane, Asif Iqbal. (2017). "CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis." Web.
1. Abd-Krim Seghouane, Asif Iqbal. CSMSDL: A Common Sequential Dictionary Learning Algorithm for Multi-Subject fMRI Data Sets Analysis [Internet]. IEEE SigPort; 2017. Available from : http://sigport.org/1923