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- W3086573485 abstract "Despite many models have been proposed for brain visual perception and content understanding via electroencephalograms (EEGs), due to the lack of research on the inherent temporal relationship, EEG-based visual object classification still demands the improvement on its accuracy and computation complexity. To take full advantage of the uneven visual feature saturation between time segments, an end-to-end attention-based Bi-LSTM Method is proposed, named Bi-LSTM-AttGW. Two attention strategies are introduced to Bi-LSTM framework. The attention gate replaces the forget gate in traditional LSTM. It is only relevant to the historical cell state, and not related to the current input. Hence, the attention gate can greatly reduce the number of training parameters. Moreover, the attention weighting method is applied to Bi-LSTM output, and it can explore the most decisive information. The best classification accuracy achieved by Bi-LSTM-AttGW model is 99.50%. Compared with the state-of-art algorithms and baseline models, the proposed method has great advantages in classification performance and computational complexity. Considering brain region level contribution on visual cognition task, we also verify our method using EEG signals collected from the frontal and occipital regions, that are highly correlated with visual perception tasks. The results show promise towards the idea that human brain activity related to visual recognition can be more effectively decoded by neural networks with neural mechanism. The experimental results not only could provide strong support for the modularity theory about the brain cognitive function, but show the superiority of the proposed Bi-LSTM model with attention mechanism again." @default.
- W3086573485 created "2020-09-21" @default.
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- W3086573485 date "2021-01-01" @default.
- W3086573485 modified "2023-10-09" @default.
- W3086573485 title "An Attention-based Bi-LSTM Method for Visual Object Classification via EEG" @default.
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- W3086573485 doi "https://doi.org/10.1016/j.bspc.2020.102174" @default.
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