Tight analysis of a self-approaching strategy for the online kernel-search problem

被引:3
作者
Lee, JH [1 ]
Chwa, KY [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Comp Sci, Yusong Gu, Taejon 305701, South Korea
关键词
computational geometry; online algorithm; star-shaped polygon;
D O I
10.1016/S0020-0190(98)00191-4
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The online kernel-search problem is for a mobile robot with 360 degrees degree vision to move from a starting point to the closest kernel point within an unknown star-shaped polygon. Icking and Klein (1991, 1997) presented a simple strategy, called CAB, and showed that CAB is 5.331-competitive. In this paper we show that CAB is (pi + 1)-competitive, which is a tight analysis of it. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:39 / 45
页数:7
相关论文
共 8 条
[1]  
Hoffmann F, 1997, PROCEEDINGS OF THE EIGHTH ANNUAL ACM-SIAM SYMPOSIUM ON DISCRETE ALGORITHMS, P166
[2]  
Icking C., 1995, Proceedings of the Eleventh Annual Symposium on Computational Geometry, P258, DOI 10.1145/220279.220307
[3]  
ICKING C, 1997, 211 FERN U
[4]  
ICKING C, IN PRESS MATH P CAMB
[5]  
KLEIN R, 1991, PROCEEDINGS - 32ND ANNUAL SYMPOSIUM ON FOUNDATIONS OF COMPUTER SCIENCE, P304, DOI 10.1109/SFCS.1991.185383
[6]  
LEE JH, 1997, P 13 ANN ACM S COMP, P427
[7]  
Papadimitriou C.H., 1989, LECT NOTES COMPUTER, V372, P610
[8]   CURVES WITH INCREASING CHORDS [J].
ROTE, G .
MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, 1994, 115 :1-12