Please use this identifier to cite or link to this item:
Title: An Improved Approximation Algorithm for the s-t Path Movement Problem
Authors: Wattana Jindaluang
Jakarin Chawachat
Varin Chouvatut
Jittat Fakcharoenpho
Sanpawat Kantabutra
Issue Date: 2017
Publisher: Science Faculty of Chiang Mai University
Abstract: This paper considers a movement problem that minimizes the maximum movement of pebbles on a graph to form a path from source vertex to destination vertex . The best known algorithm for this problem is a 7-approximation algorithm developed by Berman, Demaine, and Zadimoghaddam in 2011. We refine the analysis of Berman et al. to obtain an -approximation algorithm for any constant . This problem is a subroutine used by Berman et al. for finding a solution to the connectivity movement problem. Using our improved algorithm as a subroutine, the approximation ratio for the connectivity movement problem improves from 136 to .
ISSN: 0125-2526
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.

Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.