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Semi-supervised feature extraction for RNA-seq data analysis

  • Jin Xing Liu
  • , Yong Xu
  • , Ying Lian Gao
  • , Dong Wang
  • , Chun Hou Zheng
  • , Jun Liang Shang
  • Harbin Institute of Technology
  • Qufu Normal University
  • Anhui University

Research output: Contribution to journalConference articlepeer-review

Abstract

It is of urgency to effectively identify differentially expressed genes from RNA-Seq data. In this paper, we propose a novel method, semi-supervised feature extraction, to analyze RNA-Seq data. Our scheme is shown as follows. Firstly, we construct a graph Laplacian matrix and refine it by using labeled samples. Secondly, we find semi-supervised optimal maps by solving a generalized eigenvalue problem. Thirdly, we solve an optimal problem via joint L2,1-norm constraint to obtain a projection matrix. Finally, we identify differentially expressed genes based on the projection matrix. The results on real RNA-Seq data sets demonstrate the feasibility and effectiveness of our method.

Original languageEnglish
Pages (from-to)679-685
Number of pages7
JournalLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume9227
DOIs
StatePublished - 2015
Externally publishedYes
Event11th International Conference on Intelligent Computing, ICIC 2015 - Fuzhou, China
Duration: 20 Aug 201523 Aug 2015

Keywords

  • Feature extraction
  • L-norm constraint
  • RNA-Seq data analysis
  • Spectral regression

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