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Authorship identification of text based on attention mechanism
ZHANG Yang, JIANG Minghu
Journal of Computer Applications 2021, 41 (
7
): 1897-1901. DOI:
10.11772/j.issn.1001-9081.2020101528
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528
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The accuracy of authorship identification based on deep neural network decreases significantly when faced with a large number of candidate authors. In order to improve the accuracy of authorship identification, a neural network consisting of fast text classification (fastText) and an attention layer was proposed, and it was combined with the continuous Part-Of-Speech (POS)
n
-gram features for authorship identification of Chinese novels. Compared with Text Convolutional Neural Network (TextCNN), Text Recurrent Neural Network (TextRNN), Long Short-Term Memory (LSTM) network and fastText, the experimental results show that the proposed model obtains the highest classification accuracy. Compared with the fastText model, the introduction of attention mechanism increases the accuracy corresponding to different POS
n
-gram features by 2.14 percentage points on average; meanwhile, the model retains the high-speed and efficiency of fastText, and the text features used by it can be applied to other languages.
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Near field communication-enabled water meter system with mobile payment
ZHANG Chengyu, WANG Rangding, YAO Ling, FU Songyin, ZUO Fuqiang, GAO Qifei, JIANG Ming
Journal of Computer Applications 2017, 37 (
1
): 166-169. DOI:
10.11772/j.issn.1001-9081.2017.01.0166
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508
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In view of the problems of traditional prepaid meters such as inefficiency and inconvenience, a Near Field Communication (NFC)-enabled water meter system that has the functions of mobile payment and data query was proposed. Firstly, according to the business requirements of the prepaid water meter, the overall architecture of the water meter system was developed based on NFC technology, and the software and hardware were designed. Secondly, a low-power mechanism which was used to wake up the water meter by detecting the external magnetic field changes was proposed. Finally, the security performance in mobile payment of the water meter system was analyzed based on NFC security protocols. The experimental results show that users can dynamically awake the water meter system, and utilize the functions of mobile payment, data querying and data uploading, by using the NFC mobile phones or other mobile terminals with NFC module.
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Facial feature points localization algorithm using pose estimation
ZHANG Haiyan, GAO Shangbing, JIANG Mingxin
Journal of Computer Applications 0, (
): 3256-3260. DOI:
10.11772/j.issn.1001-9081.2017.11.3256
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574
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Aiming at the problem that the existing robust cascade postural regression algorithm lacks shape constraint, and has low localization accuracy and unsatisfactory success rate in complex face and occlusion situations, a novel positioning algorithm for pose estimation of facial feature points was proposed to improve the accuracy and success rate. A regional block operation was performed on face feature points to implement shape constraint. To improve the algorithm performance, a regression operation was performed on partial feature point positions to reduce the scale of regression, and the shape index feature was introduced to sampling prior operation. The experimental results show that the proposed algorithm has higher localization accuracy and robustness for complex face and occlusion, and meets the realtime requirement.
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