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FETCH : A Fast and Efficient Technique for Channel Selection in EEG Wearable Systems

Amirshahi, Alireza ; Dan, Jonathan ; Miranda, José ; Aminifar, Amir LU orcid and Atienza, David (2024) 5th Annual Conference on Health, Inference, and Learning, CHIL 2024 In Proceedings of Machine Learning Research 248. p.397-409
Abstract

The rapid development of wearable biomedical systems now enables real-time monitoring of electroencephalography (EEG) signals. Acquisition of these signals relies on electrodes. These systems must meet the design challenge of selecting an optimal set of electrodes that balances performance and usability constraints. The search for the optimal subset of electrodes from a larger set is a problem with combinatorial complexity. While existing research has primarily focused on search strategies that only explore limited combinations, our methodology proposes a computationally efficient way to explore all combinations. To avoid the computational burden associated with training the model for each combination, we leverage an innovative approach... (More)

The rapid development of wearable biomedical systems now enables real-time monitoring of electroencephalography (EEG) signals. Acquisition of these signals relies on electrodes. These systems must meet the design challenge of selecting an optimal set of electrodes that balances performance and usability constraints. The search for the optimal subset of electrodes from a larger set is a problem with combinatorial complexity. While existing research has primarily focused on search strategies that only explore limited combinations, our methodology proposes a computationally efficient way to explore all combinations. To avoid the computational burden associated with training the model for each combination, we leverage an innovative approach inspired by few-shot learning. Remarkably, this strategy covers all the wearable electrode combinations while significantly reducing training time compared to retraining the network on each possible combination. In the context of an epileptic seizure detection task, the proposed method achieves an AUC value of 0.917 with configurations using eight electrodes. This performance matches that of prior research but is achieved in significantly less time, transforming a process that would span months into a matter of hours on a single GPU device. Our work allows comprehensive exploration of electrode configurations in wearable biomedical device design, yielding insights that enhance performance and real-world feasibility.

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author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the fifth Conference on Health, Inference, and Learning
series title
Proceedings of Machine Learning Research
volume
248
pages
13 pages
publisher
ML Research Press
conference name
5th Annual Conference on Health, Inference, and Learning, CHIL 2024
conference location
New York, United States
conference dates
2024-06-27 - 2024-06-28
external identifiers
  • scopus:85203840096
ISSN
2640-3498
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2024 A. Amirshahi, J. Dan, J. Miranda, A. Aminifar & D. Atienza.
id
200e1565-a480-4ff4-8b93-cd135026f8ea
alternative location
https://proceedings.mlr.press/v248/amirshahi24a.html
date added to LUP
2024-11-01 19:09:35
date last changed
2025-04-04 15:21:21
@inproceedings{200e1565-a480-4ff4-8b93-cd135026f8ea,
  abstract     = {{<p>The rapid development of wearable biomedical systems now enables real-time monitoring of electroencephalography (EEG) signals. Acquisition of these signals relies on electrodes. These systems must meet the design challenge of selecting an optimal set of electrodes that balances performance and usability constraints. The search for the optimal subset of electrodes from a larger set is a problem with combinatorial complexity. While existing research has primarily focused on search strategies that only explore limited combinations, our methodology proposes a computationally efficient way to explore all combinations. To avoid the computational burden associated with training the model for each combination, we leverage an innovative approach inspired by few-shot learning. Remarkably, this strategy covers all the wearable electrode combinations while significantly reducing training time compared to retraining the network on each possible combination. In the context of an epileptic seizure detection task, the proposed method achieves an AUC value of 0.917 with configurations using eight electrodes. This performance matches that of prior research but is achieved in significantly less time, transforming a process that would span months into a matter of hours on a single GPU device. Our work allows comprehensive exploration of electrode configurations in wearable biomedical device design, yielding insights that enhance performance and real-world feasibility.</p>}},
  author       = {{Amirshahi, Alireza and Dan, Jonathan and Miranda, José and Aminifar, Amir and Atienza, David}},
  booktitle    = {{Proceedings of the fifth Conference on Health, Inference, and Learning}},
  issn         = {{2640-3498}},
  language     = {{eng}},
  pages        = {{397--409}},
  publisher    = {{ML Research Press}},
  series       = {{Proceedings of Machine Learning Research}},
  title        = {{FETCH : A Fast and Efficient Technique for Channel Selection in EEG Wearable Systems}},
  url          = {{https://proceedings.mlr.press/v248/amirshahi24a.html}},
  volume       = {{248}},
  year         = {{2024}},
}