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Approximation Algorithms for the Lower Bounded Correlation Clustering Problem

Published: 15 November 2021 Publication History

Abstract

Lower bounded correlation clustering problem is a generalization of the classical correlation clustering problem, which has many applications in protein interaction networks, cross-lingual link detection, and communication networks, etc. In the lower bounded correlation clustering problem, we are given a complete graph and an integer L. Each edge is labelled either by a positive sign + or a negative sign − whenever the two endpoints of the edge are similar or dissimilar respectively. The goal of this problem is to partition the vertex set into several clusters, subject to an lower bound L on the sizes of clusters so as to minimize the number of disagreements, which is the total number of the edges with positive labels between clusters and the edges with negative labels within clusters. In this paper, we propose the lower bounded correlation clustering problem and formulate the problem as an integer program. Furthermore, we provide two polynomial time algorithms with constant approximate ratios for the lower bounded correlation clustering problem on some special graphs.

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Published In

cover image Guide Proceedings
Computational Data and Social Networks: 10th International Conference, CSoNet 2021, Virtual Event, November 15–17, 2021, Proceedings
Nov 2021
391 pages
ISBN:978-3-030-91433-2
DOI:10.1007/978-3-030-91434-9

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Springer-Verlag

Berlin, Heidelberg

Publication History

Published: 15 November 2021

Author Tags

  1. Lower bounded
  2. Correlation clustering
  3. Approximation algorithm
  4. Polynomial time

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