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Zhang Wei, Miao Duoqian, Gao Can, Yue Xiaodong. A Neighborhood Rough Sets-Based Co-Training Model for Classification[J]. Journal of Computer Research and Development, 2014, 51(8): 1811-1820. DOI: 10.7544/issn1000-1239.2014.20131049
Citation: Zhang Wei, Miao Duoqian, Gao Can, Yue Xiaodong. A Neighborhood Rough Sets-Based Co-Training Model for Classification[J]. Journal of Computer Research and Development, 2014, 51(8): 1811-1820. DOI: 10.7544/issn1000-1239.2014.20131049

A Neighborhood Rough Sets-Based Co-Training Model for Classification

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  • Published Date: August 14, 2014
  • Pawlak's rough set theory, as a supervised learning model, is only applicable for discrete data. However it is often the case that practical data sets are continuous and involve both few labeled and abundant unlabeled data, which is outside the realm of Pawlak's rough set theory. In this paper, a neighborhood rough sets based co-training model for classification is proposed, which could deal with continuous data and utilize the unlabeled and labeled data to achieve better performance than the classifier learned only from few labeled data. Firstly, a heuristic algorithm based on neighborhood mutual information is put forward to compute the reduct of partially labeled continuous data. Then two diverse reducts are generated. The model employs the two reducts to train two base classifiers on the labeled data, and makes the two base classifiers teach each other on the unlabeled data to boot the their performance iteratively. The experimental results on selected UCI datasets show that the proposed model are more effective to deal with partially labeled continuous data than some representative ones in learning accuracy.
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