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11 October 2023 ConvMixer with large kernel: an efficient architecture for classifying the EEG of imagined speech
Zilong Li
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Proceedings Volume 12800, Sixth International Conference on Computer Information Science and Application Technology (CISAT 2023); 128002V (2023) https://doi.org/10.1117/12.3003841
Event: 6th International Conference on Computer Information Science and Application Technology (CISAT 2023), 2023, Hangzhou, China
Abstract
Imagined speech is a kind of intuitive paradigm of Brain Computer Interface (BCI). In recent years, the accuracy of the classification based on the electroencephalogram of imagined speech has increased owing to the more and more complex models. In order to further improve the accuracy and reduce the complexity of the model to a practical level, this paper proposed an efficient architecture consisted of Large Kernel and ConvMixer. This architecture increased the accuracy to 75.73%. The performance of the architecture is higher than other models, including combination EEGNet and Transformer which is the best model in the past. The results of further experiments show that Large Kernel can extract more task-related features from the EEG of imagined speech. ConvMixer can achieve a certain degree of performance improvement even with a greatly simplified structure of model.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Zilong Li "ConvMixer with large kernel: an efficient architecture for classifying the EEG of imagined speech", Proc. SPIE 12800, Sixth International Conference on Computer Information Science and Application Technology (CISAT 2023), 128002V (11 October 2023); https://doi.org/10.1117/12.3003841
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KEYWORDS
Electroencephalography
Feature extraction
Convolution
Signal filtering
Electrodes
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