Mixed-Norm Regularization for Brain Decoding
Joint Authors
Congedo, M.
Phlypo, R.
Jrad, N.
Flamary, R.
Rakotomamonjy, A.
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-17
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This work investigates the use of mixed-norm regularization for sensor selection in event-related potential (ERP) based brain-computer interfaces (BCI).
The classification problem is cast as a discriminative optimization framework where sensor selection is induced through the use of mixed-norms.
This framework is extended to the multitask learning situation where several similar classification tasks related to different subjects are learned simultaneously.
In this case, multitask learning helps in leveraging data scarcity issue yielding to more robust classifiers.
For this purpose, we have introduced a regularizer that induces both sensor selection and classifier similarities.
The different regularization approaches are compared on three ERP datasets showing the interest of mixed-norm regularization in terms of sensor selection.
The multitask approaches are evaluated when a small number of learning examples are available yielding to significant performance improvements especially for subjects performing poorly.
American Psychological Association (APA)
Flamary, R.& Jrad, N.& Phlypo, R.& Congedo, M.& Rakotomamonjy, A.. 2014. Mixed-Norm Regularization for Brain Decoding. Computational and Mathematical Methods in Medicine،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-462960
Modern Language Association (MLA)
Flamary, R.…[et al.]. Mixed-Norm Regularization for Brain Decoding. Computational and Mathematical Methods in Medicine No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-462960
American Medical Association (AMA)
Flamary, R.& Jrad, N.& Phlypo, R.& Congedo, M.& Rakotomamonjy, A.. Mixed-Norm Regularization for Brain Decoding. Computational and Mathematical Methods in Medicine. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-462960
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-462960