Computer Science

Computer Science ›› 2022, Vol. 49 ›› Issue (3): 288-293.doi: 10.11896/jsjkx.210100156

• Artificial Intelligence • Previous Articles     Next Articles

Semi-supervised Learning Method Based on Automated Mixed Sample Data Augmentation Techniques

XU Hua-jie1,2, CHEN Yu1, YANG Yang1, QIN Yuan-zhuo3   

  1. 1 College of Computer and Electronic Information,Guangxi University,Nanning 530004,China
    2 Guangxi Key Laboratory of Multimedia Communications and Network Technology,Nanning 530004,China
    3 College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China
  • Received:2021-01-20 Revised:2021-07-07 Online:2022-03-15 Published:2022-03-15
  • About author:XU Hua-jie,born in 1974,Ph.D,asso-ciate professor,is a member of China Computer Federation.His main research interests include artificial intelligence,acoustic signal recognition and computer vision.
    QIN Yuan-zhuo,born in 1996,doctoral candidate.His main research interests include artificial intelligence and computer vision and their applications in engineering.
  • Supported by:
    Science and Technology Plan Project of Guangxi Zhuang Autonomous Region(2017AB15008) and Science and Technology Plan Project of Chongzuo(FB2018001).

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Abstract: Consistency-based semi-supervised learning methods typically use simple data augmentation methods to achieve consistent predictions for both original inputs and perturbed inputs.The effectiveness of this approach is difficult to be guaranteed when the proportion of labeled data is relatively low.Extending some advanced data augmentation method in supervised learning to be used in a semi-supervised learning setting is one of the ideas to solve this problem.Based on the consistency-based semi-supervised learning method MixMatch,a semi-supervised learning method AutoMixMatch based on automated mixed sample data augmentation techniques is proposed,which uses a modified automatic data augmentation technique in the data augmentation phase,and a mixed-sample algorithm is proposed to enhance the utilization of unlabeled samples in the sample mixing phase.The performance of the proposed method is evaluated through image classification experiments.In image classification benchmark datasets,the proposed method outperforms several mainstream semi-supervised classification methods in three labeled sample proportions,which validates the effectiveness of the method.In addition,the proposed method performs better with a very low proportion of labeled data to the training data (only 0.05%),and the classification error rate of the proposed method on the SVHN dataset is 30.17% lower than that of MixMatch.

Key words: Automated data augmentation, Consistency, Image classification, Mixed sample, Semi-supervised learning

CLC Number: 

  • TP391
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