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IEICE TRANSACTIONS on Information

Exact Exponential Algorithm for Distance-3 Independent Set Problem

Katsuhisa YAMANAKA, Shogo KAWARAGI, Takashi HIRAYAMA

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Summary :

Let G=(V,E) be an unweighted simple graph. A distance-d independent set is a subset IV such that dist(u, v) ≥ d for any two vertices u, v in I, where dist(u, v) is the distance between u and v. Then, Maximum Distance-d Independent Set problem requires to compute the size of a distance-d independent set with the maximum number of vertices. Even for a fixed integer d ≥ 3, this problem is NP-hard. In this paper, we design an exact exponential algorithm that calculates the size of a maximum distance-3 independent set in O(1.4143n) time.

Publication
IEICE TRANSACTIONS on Information Vol.E102-D No.3 pp.499-501
Publication Date
2019/03/01
Publicized
2018/10/30
Online ISSN
1745-1361
DOI
10.1587/transinf.2018FCL0002
Type of Manuscript
Special Section LETTER (Special Section on Foundations of Computer Science — Algorithm, Theory of Computation, and their Applications —)
Category

Authors

Katsuhisa YAMANAKA
  Iwate University
Shogo KAWARAGI
  Iwate University
Takashi HIRAYAMA
  Iwate University

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