Journal of Applied Sciences ›› 2020, Vol. 38 ›› Issue (5): 825-842.doi: 10.3969/j.issn.0255-8297.2020.05.012

• Novel Technologies for Intelligent Computing • Previous Articles    

Integrated Robust Structured NMF Model for Sample Clustering and Network Analysis

ZHANG Xiaoning1, KONG Xiangzhen1, LUO Chuanwen2, LIU Jinxing1   

  1. 1. School of Computer, Qufu Normal University, Rizhao 276826, Shandong, China;
    2. School of Information, Beijing Forestry University, Beijing 100083, China
  • Received:2020-06-15 Online:2020-09-30 Published:2020-10-14

Abstract: In order to preserve the homogeneity among data more effectively, this paper proposes an integrated robust structured non-negative matrix factorization (integrated robust structured non-negative matrix factorization, iRSNMF) model with an induced structured term. We verify the effectiveness of this model by applying it to the clustering experiments of cancer samples and the analysis of gene co-expression network. Reasonable biological explanations of related genes and pathways are given based on existing literature. Experimental results show that the iRSNMF method has excellent clustering performance and more-key genes mining ability. The genes and pathways obtained by the iRSNMF model play an important role in cancer pathogenesis, accordingly, providing a new idea for the diagnosis, treatment and prognosis of cancer.

Key words: integrated model, structured, non-negative matrix factorization, sample clustering, gene co-expression network analysis

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