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作者:

Ji, Sai (Ji, Sai.) | Li, Min (Li, Min.) | Liang, Mei (Liang, Mei.) | Zhang, Zhenning (Zhang, Zhenning.)

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EI Scopus SCIE

摘要:

Min-max disagreements are an important generalization of the correlation clustering problem (CorCP). It can be defined as follows. Given a marked complete graph G = (V, E) , each edge in the graph is marked by a positive label "+" or a negative label "-" based on the similarity of the connected vertices. The goal is to find a clustering C of vertices V , so as to minimize the number of disagreements at the vertex with the most disagreements. Here, the disagreements are the positive cut edges and the negative non-cut edges produced by clustering C. This paper considers two robust min-max disagreements: min-max disagreements with outliers and min-max disagreements with penalties. Given parameter delta is an element of (0, 1/14) , we first provide a threshold-based iterative clustering algorithm based on LP-rounding technique, which is a (1/delta, 7/(1 -14 delta))-bi-criteria approximation algorithm for both the min-max disagreements with outliers and the min-max disagreements with outliers on one-sided complete bipartite graphs. Next, we verify that the above algorithm can achieve an approximation ratio of 21 for min-max disagreements with penalties when we set parameter delta = 1/21.

关键词:

Clustering algorithms Approximation algorithms Iterative algorithms outliers Correlation penalties approximation algorithm Bipartite graph LP-rounding Optimization min-max disagreements

作者机构:

  • [ 1 ] [Ji, Sai]Hebei Univ Technol, Inst Math, Tianjin 300401, Peoples R China
  • [ 2 ] [Li, Min]Shandong Normal Univ, Sch Math & Stat, Jinan 250358, Peoples R China
  • [ 3 ] [Liang, Mei]Beijing Univ Technol, Coll Stat & Data Sci, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Zhenning]Beijing Univ Technol, Dept Operat Res & Informat Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zhang, Zhenning]Beijing Univ Technol, Dept Operat Res & Informat Engn, Beijing 100124, Peoples R China

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来源 :

TSINGHUA SCIENCE AND TECHNOLOGY

ISSN: 1007-0214

年份: 2024

期: 1

卷: 29

页码: 66-75

6 . 6 0 0

JCR@2022

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