Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection

In the area of brain-computer interfaces (BCI), the detection of P300 is a very important technique and has a lot of applications. Although this problem has been studied for decades, it is still a tough problem in electroencephalography (EEG) signal processing owing to its high dimension features an...

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Main Authors: Hongpeng Liao, Jianwu Xu, Zhuliang Yu
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/23/1/39
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author Hongpeng Liao
Jianwu Xu
Zhuliang Yu
author_facet Hongpeng Liao
Jianwu Xu
Zhuliang Yu
author_sort Hongpeng Liao
collection DOAJ
description In the area of brain-computer interfaces (BCI), the detection of P300 is a very important technique and has a lot of applications. Although this problem has been studied for decades, it is still a tough problem in electroencephalography (EEG) signal processing owing to its high dimension features and low signal-to-noise ratio (SNR). Recently, neural networks, like conventional neural networks (CNN), has shown excellent performance on many applications. However, standard convolutional neural networks suffer from performance degradation on dealing with noisy data or data with too many redundant information. In this paper, we proposed a novel convolutional neural network with variational information bottleneck for P300 detection. Wiht the CNN architecture and information bottleneck, the proposed network termed P300-VIB-Net could remove the redundant information in data effectively. The experimental results on BCI competition data sets show that P300-VIB-Net achieves cutting-edge character recognition performance. Furthermore, the proposed model is capable of restricting the flow of irrelevant information adaptively in the network from perspective of information theory. The experimental results show that P300-VIB-Net is a promising tool for P300 detection.
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spelling doaj.art-b6c1db6849834a43a9e0b8c5dd96450b2023-11-21T03:00:40ZengMDPI AGEntropy1099-43002020-12-012313910.3390/e23010039Novel Convolutional Neural Network with Variational Information Bottleneck for P300 DetectionHongpeng Liao0Jianwu Xu1Zhuliang Yu2College of Automation Science and Technology, South China University of Technology, Guangzhou 510641, ChinaGuangzhou Galaxy Thermal Energy Incorporated Company, Guangzhou 510220, ChinaCollege of Automation Science and Technology, South China University of Technology, Guangzhou 510641, ChinaIn the area of brain-computer interfaces (BCI), the detection of P300 is a very important technique and has a lot of applications. Although this problem has been studied for decades, it is still a tough problem in electroencephalography (EEG) signal processing owing to its high dimension features and low signal-to-noise ratio (SNR). Recently, neural networks, like conventional neural networks (CNN), has shown excellent performance on many applications. However, standard convolutional neural networks suffer from performance degradation on dealing with noisy data or data with too many redundant information. In this paper, we proposed a novel convolutional neural network with variational information bottleneck for P300 detection. Wiht the CNN architecture and information bottleneck, the proposed network termed P300-VIB-Net could remove the redundant information in data effectively. The experimental results on BCI competition data sets show that P300-VIB-Net achieves cutting-edge character recognition performance. Furthermore, the proposed model is capable of restricting the flow of irrelevant information adaptively in the network from perspective of information theory. The experimental results show that P300-VIB-Net is a promising tool for P300 detection.https://www.mdpi.com/1099-4300/23/1/39variational information bottleneckconvolutional neural networkP300 signal detection
spellingShingle Hongpeng Liao
Jianwu Xu
Zhuliang Yu
Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection
Entropy
variational information bottleneck
convolutional neural network
P300 signal detection
title Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection
title_full Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection
title_fullStr Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection
title_full_unstemmed Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection
title_short Novel Convolutional Neural Network with Variational Information Bottleneck for P300 Detection
title_sort novel convolutional neural network with variational information bottleneck for p300 detection
topic variational information bottleneck
convolutional neural network
P300 signal detection
url https://www.mdpi.com/1099-4300/23/1/39
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AT zhuliangyu novelconvolutionalneuralnetworkwithvariationalinformationbottleneckforp300detection