Novel semi-supervised classification method based on class certainty of samples

Gao, Fei and Yue, Zhenyu and Wang, Jun and Yang, Erfu and Hussain, Amir (2018) Novel semi-supervised classification method based on class certainty of samples. In: The 9th International Conference on Brain-Inspired Cognitive System​, 2018-07-07 - 2018-07-08, Guangcheng Hotel.

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Abstract

The traditional classification method based on supervised learning classifies remote sensing (RS) images by using sufficient labeled samples. However, the number of labeled samples is limited due to the expensive and time-consuming collection. To effectively utilize the information of unlabeled samples in the learning process, this paper proposes a novel semi-supervised classification method based on class certainty of samples (CCS). First, the class certainty of unlabeled samples obtained based on multi-class SVM is smoothed for robustness. Then, a new semi-supervised linear discriminant analysis (LDA) is presented based on class certainty, which improves the separability of samples in the projection subspace. Ultimately, we extend the semi-supervised LDA to nonlinear dimensional reduction by combining class certainty and kernel methods. Furthermore, to assess the effectiveness of proposed method, the nearest neighbor classifier is adopted to classify actual SAR images. The results demonstrate that the proposed method can effectively exploit the information of unlabeled samples and greatly improve the classification effect compared with other state-of-the-art approaches.

ORCID iDs

Yang, Erfu ORCID: https://orcid.org/0000-0003-1813-5950

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	64732
  Dates:	Date Event 7 July 2018 Published 16 June 2018 Accepted
  Keywords:	remote sensing images, semi-supervised classification, class certainty, semi-supervised LDA, kernal method, Technology, Engineering(all)
  Subjects:	Technology
  Department:	Faculty of Engineering > Design, Manufacture and Engineering Management
  Depositing user:	Pure Administrator
  Date deposited:	09 Jul 2018 13:24
  Last modified:	25 May 2023 08:45
  URI:	https://strathprints.strath.ac.uk/id/eprint/64732