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IEICE TRANSACTIONS on Fundamentals

Open Access
Max-Min 3-Dispersion Problems

Takashi HORIYAMA, Shin-ichi NAKANO, Toshiki SAITOH, Koki SUETSUGU, Akira SUZUKI, Ryuhei UEHARA, Takeaki UNO, Kunihiro WASA

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Summary :

Given a set P of n points on which facilities can be placed and an integer k, we want to place k facilities on some points so that the minimum distance between facilities is maximized. The problem is called the k-dispersion problem. In this paper, we consider the 3-dispersion problem when P is a set of points on a plane (2-dimensional space). Note that the 2-dispersion problem corresponds to the diameter problem. We give an O(n) time algorithm to solve the 3-dispersion problem in the L metric, and an O(n) time algorithm to solve the 3-dispersion problem in the L1 metric. Also, we give an O(n2 log n) time algorithm to solve the 3-dispersion problem in the L2 metric.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E104-A No.9 pp.1101-1107
Publication Date
2021/09/01
Publicized
2021/03/19
Online ISSN
1745-1337
DOI
10.1587/transfun.2020DMP0003
Type of Manuscript
Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category
Algorithms and Data Structures

Authors

Takashi HORIYAMA
  Hokkaido University
Shin-ichi NAKANO
  Gunma University
Toshiki SAITOH
  Kyushu Institute of Technology
Koki SUETSUGU
  National Institute of Informatics
Akira SUZUKI
  Tohoku University
Ryuhei UEHARA
  JAIST
Takeaki UNO
  National Institute of Informatics
Kunihiro WASA
  Toyohashi University of Technology

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