LIU Jian, CHENG Yuhu, WANG Xuesong, CUI Xiaoluo. Supervised Penalty Matrix Decomposition for Tumor Differentially Expressed Genes Selection[J]. Chinese Journal of Electronics, 2018, 27(4): 845-851. doi: 10.1049/cje.2017.09.023
Citation: LIU Jian, CHENG Yuhu, WANG Xuesong, CUI Xiaoluo. Supervised Penalty Matrix Decomposition for Tumor Differentially Expressed Genes Selection[J]. Chinese Journal of Electronics, 2018, 27(4): 845-851. doi: 10.1049/cje.2017.09.023

Supervised Penalty Matrix Decomposition for Tumor Differentially Expressed Genes Selection

doi: 10.1049/cje.2017.09.023
Funds:  This work is supported by the National Natural Science Foundation of China (No.61772532, No.61472424).
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  • Corresponding author: CHENG Yuhu (corresponding author) received the Ph.D. degree from the Institute of Automation, Chinese Academy of Sciences in 2005. He is currently a professor in the School of Information and Control Engineering, China University of Mining and Technology. His main research interests include machine learning, transfer learning, and intelligent system. In 2010, he was the recipient of the New Century Excellent Talents in University from the Ministry of Education of China. (
  • Received Date: 2017-03-13
  • Rev Recd Date: 2017-04-25
  • Publish Date: 2018-07-10
  • A reliable and precise recognition of the differentially expressed genes of tumor is crucial to treat the cancer effectively. The small number of differentially expressed genes in a huge gene expression dataset determines the important role of sparse methods, such as Penalty matrix decomposition (PMD), among the feature selection methods. The sparse methods always have the drawback:they do not take advantage of known class labels of gene expression data. A novel supervised-sparse method named as Supervised PMD (SPMD) is proposed by adding the class information into PMD via the total scatter matrix. The brief idea of our method used to select the differentially expressed genes is given as follows. The total scatter matrix is obtained according to the gene expression data with class label. The obtained total scatter matrix is decomposed by PMD to acquire the sparse vectors. The non-zero items in sparse vectors are selected as the differentially expressed genes. The Gene ontology (GO) enrichment of functional annotation of the selected genes is detected by ToppFun. Experiments on synthetic data and two real tumor gene expression datasets show that the proposed SPMD is quite promising to select the differentially expressed genes.
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