Abstract
Non-negative Matrix Factorization (NMF) algorithm is a useful method for data dimensionality reduction, which is performed with the Euclidean distance. However, the basic NMF only assumes that data will be destroyed by Gaussian noise. It ignores both the intrinsic geometrical structure and the influence of sparse noises existing in the gene expression data. To enhance the robustness of the NMF, a novel method called Hyper-graph Robust Non-negative Matrix Factorization (HRNMF) is proposed for cancer sample clustering and feature selection. The merits of the HRNMF mainly consist of two aspects. Firstly, the L2, 1-norm is combined with the objective function, which can effectively handle noise and outliers. Secondly, the manifold information and sparsity are also considered so we add the hyper-graph regularization term and sparse constraints to the error function. It can effectively preserve the geometric structure and enhance matrix sparsity. Experiments on Cancer Genome Atlas (TCGA) gene expression data have demonstrated that HRNMF performs better than other advanced methods in cancer sample clustering and feature selection.
| Original language | English |
|---|---|
| Title of host publication | Recent Advances in Data Science - 3rd International Conference on Data Science, Medicine, and Bioinformatics, IDMB 2019, Revised Selected Papers |
| Editors | Henry Han, Tie Wei, Wenbin Liu, Fei Han |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 112-125 |
| Number of pages | 14 |
| ISBN (Print) | 9789811587597 |
| DOIs | |
| State | Published - 2020 |
| Externally published | Yes |
| Event | 3rd International Conference on Data Science, Medicine, and Bioinformatics, IDMB 2019 - Nanning, China Duration: 22 Jun 2019 → 24 Jun 2019 |
Publication series
| Name | Communications in Computer and Information Science |
|---|---|
| Volume | 1099 CCIS |
| ISSN (Print) | 1865-0929 |
| ISSN (Electronic) | 1865-0937 |
Conference
| Conference | 3rd International Conference on Data Science, Medicine, and Bioinformatics, IDMB 2019 |
|---|---|
| Country/Territory | China |
| City | Nanning |
| Period | 22/06/19 → 24/06/19 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Hyper-graph regularization
- L-norm
- Non-negative Matrix Factorization
- Robustness
- Sample clustering
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