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An RSVM based two-teachers-one-student semi-supervised learning algorithm
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DOI：10.1016/j.neunet.2011.06.019.png)
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Based on the reduced SVM, we propose a multi-view algorithm, two-teachers-one-student, for semi-supervised learning. With RSVM, different from typical multi-view methods, reduced sets suggest different views in the represented kernel feature space rather than in the input space. No label information is necessary when we select reduced sets, and this makes applying RSVM to SSL possible. Our algorithm blends the concepts of co-training and consensus training. Through co-training, the classifiers generated by two views can teach the third classifier from the remaining view to learn, and this process is performed for each choice of teachers-student combination. By consensus training, predictions from more than one view can give us higher confidence for labeling unlabeled data. The results show that the proposed 2T1S achieves high cross-validation accuracy, even compared to the training with all the label information available.(C) 2011 Elsevier Ltd. All rights reserved.
Keyword:
Co-training
Consensus training
Multi-view
Reduced set
Semi-supervised learning
Support vector machines
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