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作者:

Qian, Bin (Qian, Bin.) | Gu, Xiguang (Gu, Xiguang.) | Liu, Fan (Liu, Fan.) | Tong, Lei (Tong, Lei.)

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CPCI-S

摘要:

Nonnegative Matrix Factorization (NMF), as a popular feature extraction technique, has recently attracted increasing attentions in high-dimensional data analysis, due to the strong ability of dimension reduction and semantic representation. In order to utilize the partial label information in practice, several semi-supervised NMF methods have been proposed. However, existing semi-supervised NMF variants only consider the global label constraint of data, but ignore the local label information embedded in geometric structure, which is very crucial for data representation. To address the above issue, we propose an improved NMF method, namely local and global regularized semi-supervised NMF (LGNMF), by considering the local and global label constraints simultaneously. Specifically, the local label constraint is depicted in a graph, which is pre-computed by metric learning. In addition, to explore the global label information, we construct an indicator matrix to restrict the coefficient matrix in LGNME For the formulated LGNMF, a multiplicative update rule (MUR) is developed. Extensive experiments on several real datasets demonstrate the superiority of the proposed method over the state-of-the-art methods in terms of clustering accuracy and normalized mutual information.

关键词:

metric learing nonnegative matrix factorization label embedding graph semi-supervised

作者机构:

  • [ 1 ] [Qian, Bin]Minist Publ Secur, Traff Management Res Inst, Wuxi, Jiangsu, Peoples R China
  • [ 2 ] [Gu, Xiguang]Minist Publ Secur, Traff Management Res Inst, Wuxi, Jiangsu, Peoples R China
  • [ 3 ] [Liu, Fan]Hohai Univ, Coll Comp & Informat, Nanjing, Jiangsu, Peoples R China
  • [ 4 ] [Tong, Lei]Beijing Univ Technol, Fac Informat Technol, Beijing, Peoples R China

通讯作者信息:

  • [Qian, Bin]Minist Publ Secur, Traff Management Res Inst, Wuxi, Jiangsu, Peoples R China

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来源 :

PROCEEDINGS OF 2019 IEEE 8TH JOINT INTERNATIONAL INFORMATION TECHNOLOGY AND ARTIFICIAL INTELLIGENCE CONFERENCE (ITAIC 2019)

年份: 2019

页码: 440-444

语种: 英文

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