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作者:

Han, Lu (Han, Lu.) | Xu, Dachuan (Xu, Dachuan.) (学者:徐大川) | Du, Donglei (Du, Donglei.) | Zhang, Dongmei (Zhang, Dongmei.)

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SCIE

摘要:

In this paper, we consider the uniform capacitated k-means problem (UC-k-means), an extension of the classical k-means problem (k-means) in machine learning. In the UC-k-means, we are given a set D of n points in d-dimensional space and an integer k. Every point in the d-dimensional space has an uniform capacity which is an upper bound on the number of points in D that can be connected to this point. Every twopoint pair in the space has an associated connecting cost, which is equal to the square of the distance between these two points. We want to find at most k points in the space as centers and connect every point in D to some center without violating the capacity constraint, such that the total connecting costs is minimized. Based on the technique of local search, we present a bi-criteria approximation algorithm, which has a constant approximation guarantee and violates the cardinality constraint within a constant factor, for the UC-k-means.

关键词:

Approximation algorithm k-means Local search Uniform capacitated

作者机构:

  • [ 1 ] [Han, Lu]Beijing Univ Technol, Dept Operat Res & Sci Comp, Coll Appl Sci, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Xu, Dachuan]Beijing Univ Technol, Dept Operat Res & Sci Comp, Coll Appl Sci, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Du, Donglei]Univ New Brunswick, Fac Business Adm, Fredericton, NB E3B 5A3, Canada
  • [ 4 ] [Zhang, Dongmei]Shandong Jianzhu Univ, Sch Comp Sci & Technol, 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

1 . 0 0 0

JCR@2022

ESI学科: MATHEMATICS;

ESI高被引阀值:15

JCR分区:3

被引次数:

WoS核心集被引频次: 1

SCOPUS被引频次: 1

ESI高被引论文在榜: 0 展开所有

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