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作者:

Li, Min (Li, Min.) | Xu, Dachuan (Xu, Dachuan.) (学者:徐大川) | Yue, Jun (Yue, Jun.) | Zhang, Dongmei (Zhang, Dongmei.) | Zhang, Peng (Zhang, Peng.)

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EI Scopus SCIE

摘要:

The k-means problem is a classic NP-hard problem in machine learning and computational geometry. And its goal is to separate the given set into k clusters according to the minimal squared distance. The k-means problem with penalties, as one generalization of k-means problem, allows that some point need not be clustered instead of being paid some penalty. In this paper, we study the k-means problem with penalties by using the seeding algorithm. We propose that the accuracy only involves the ratio of the maximal penalty value to the minimal one. When the penalty is uniform, the approximation factor reduces to the same one for the k-means problem. Moreover, our result generalizes the k-means++ for k-means problem to the penalty version. Numerical experiments show that our seeding algorithm is more effective than the one without using seeding.

关键词:

Seeding algorithm Penalty k-means Approximation algorithm

作者机构:

  • [ 1 ] [Li, Min]Shandong Normal Univ, Sch Math & Stat, Jinan 250014, Peoples R China
  • [ 2 ] [Yue, Jun]Shandong Normal Univ, Sch Math & Stat, Jinan 250014, Peoples R China
  • [ 3 ] [Xu, Dachuan]Beijing Univ Technol, Coll Appl Sci, Dept Operat Res & Sci Comp, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Dongmei]Shandong Jianzhu Univ, Sch Comp Sci & Technol, Jinan 250101, Peoples R China
  • [ 5 ] [Zhang, Peng]Shandong Univ, Sch Software, Jinan 250101, Peoples R China

通讯作者信息:

  • [Zhang, Dongmei]Shandong Jianzhu Univ, Sch Comp Sci & Technol, Jinan 250101, Peoples R China

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来源 :

JOURNAL OF COMBINATORIAL OPTIMIZATION

ISSN: 1382-6905

年份: 2020

期: 1

卷: 39

页码: 15-32

1 . 0 0 0

JCR@2022

ESI学科: MATHEMATICS;

ESI高被引阀值:46

被引次数:

WoS核心集被引频次: 17

SCOPUS被引频次: 20

ESI高被引论文在榜: 0 展开所有

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