Skip to main content
Log in

Unsupervised feature selection via joint local learning and group sparse regression

  • Published:
Frontiers of Information Technology & Electronic Engineering Aims and scope Submit manuscript

Abstract

Feature selection has attracted a great deal of interest over the past decades. By selecting meaningful feature subsets, the performance of learning algorithms can be effectively improved. Because label information is expensive to obtain, unsupervised feature selection methods are more widely used than the supervised ones. The key to unsupervised feature selection is to find features that effectively reflect the underlying data distribution. However, due to the inevitable redundancies and noise in a dataset, the intrinsic data distribution is not best revealed when using all features. To address this issue, we propose a novel unsupervised feature selection algorithm via joint local learning and group sparse regression (JLLGSR). JLLGSR incorporates local learning based clustering with group sparsity regularized regression in a single formulation, and seeks features that respect both the manifold structure and group sparse structure in the data space. An iterative optimization method is developed in which the weights finally converge on the important features and the selected features are able to improve the clustering results. Experiments on multiple real-world datasets (images, voices, and web pages) demonstrate the effectiveness of JLLGSR.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

Download references

Acknowledgements

The experiment is supported by Cheng-wei YAO in the Experiment Center of the College of Computer Science and Technology, Zhejiang University.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Can Wang.

Additional information

Project supported by Alibaba-Zhejiang University Joint Institute of Frontier Technologies and Zhejiang Provincial Key Research and Development Plan (No. 2017C01012)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wu, Y., Wang, C., Zhang, Yq. et al. Unsupervised feature selection via joint local learning and group sparse regression. Frontiers Inf Technol Electronic Eng 20, 538–553 (2019). https://doi.org/10.1631/FITEE.1700804

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1631/FITEE.1700804

Key words

CLC number

Navigation