Empirical Inference Conference Paper 2010

Multitask Learning for Brain-Computer Interfaces

Brain-computer interfaces (BCIs) are limited in their applicability in everyday settings by the current necessity to record subjectspecific calibration data prior to actual use of the BCI for communication. In this paper, we utilize the framework of multitask learning to construct a BCI that can be used without any subject-specific calibration process. We discuss how this out-of-the-box BCI can be further improved in a computationally efficient manner as subject-specific data becomes available. The feasibility of the approach is demonstrated on two sets of experimental EEG data recorded during a standard two-class motor imagery paradigm from a total of 19 healthy subjects. Specifically, we show that satisfactory classification results can be achieved with zero training data, and combining prior recordings with subjectspecific calibration data substantially outperforms using subject-specific data only. Our results further show that transfer between recordings under slightly different experimental setups is feasible.

Author(s): Alamgir, M. and Grosse-Wentrup, M. and Altun, Y.
Book Title: JMLR Workshop and Conference Proceedings Volume 9: AISTATS 2010
Journal: Proceedings of the Thirteenth International Conference on Artificial Intelligence and Statistics (AISTATS 2010)
Pages: 17-24
Year: 2010
Month: May
Day: 0
Editors: Teh, Y.W. , M. Titterington
Publisher: JMLR
Bibtex Type: Conference Paper (inproceedings)
Address: Cambridge, MA, USA
Event Name: Thirteenth International Conference on Artificial Intelligence and Statistics
Event Place: Chia Laguna Resort, Italy
Digital: 0
Electronic Archiving: grant_archive
Language: en
Organization: Max-Planck-Gesellschaft
School: Biologische Kybernetik
Links:

BibTex

@inproceedings{6504,
  title = {Multitask Learning for Brain-Computer Interfaces},
  journal = {Proceedings of the Thirteenth International Conference on Artificial Intelligence and Statistics (AISTATS 2010)},
  booktitle = {JMLR Workshop and Conference Proceedings Volume 9: AISTATS 2010},
  abstract = {Brain-computer interfaces (BCIs) are limited
  in their applicability in everyday settings
  by the current necessity to record subjectspecific
  calibration data prior to actual use
  of the BCI for communication. In this paper,
  we utilize the framework of multitask
  learning to construct a BCI that can be used
  without any subject-specific calibration process.
  We discuss how this out-of-the-box BCI
  can be further improved in a computationally
  efficient manner as subject-specific data
  becomes available. The feasibility of the approach
  is demonstrated on two sets of experimental
  EEG data recorded during a standard
  two-class motor imagery paradigm from
  a total of 19 healthy subjects. Specifically,
  we show that satisfactory classification results
  can be achieved with zero training data,
  and combining prior recordings with subjectspecific
  calibration data substantially outperforms
  using subject-specific data only. Our
  results further show that transfer between
  recordings under slightly different experimental
  setups is feasible.},
  pages = {17-24},
  editors = {Teh, Y.W. , M. Titterington},
  publisher = {JMLR},
  organization = {Max-Planck-Gesellschaft},
  school = {Biologische Kybernetik},
  address = {Cambridge, MA, USA},
  month = may,
  year = {2010},
  slug = {6504},
  author = {Alamgir, M. and Grosse-Wentrup, M. and Altun, Y.},
  month_numeric = {5}
}