Title
New competitive strategies for searching in unknown star-shaped polygons
Abstract
We consider searching problems in robotics that a robot has to find a path to a target by traveling in an unknown starshaped polygon P. The goal is to minimize the ratio of the distance traveled by the robot to the length of the shortest start-to-target path. Let s be a starting point in P. We first present a competitive strategy to find a path from s to the closest kernel point k of P. The length of the path that the robot generates is less than 1 + 2W (< 3.829) times the distance from s to k, which improves the best previous bound 5.331 [3]. Second, given a specified target t in P, we present a competitive strategy to find a path from s to t whose length does not exceed 17 times the length of the shortest s-t path.
Year
DOI
Venue
1997
10.1145/262839.263062
Symposium on Computational Geometry 2013
Keywords
Field
DocType
unknown star-shaped polygon,new competitive strategy,visualization,competitive strategy
Polygon,Visualization,Computer science,Geometric computing,Theoretical computer science,End-user computing,Utility computing
Conference
ISBN
Citations 
PageRank 
0-89791-878-9
4
0.69
References 
Authors
7
5
Name
Order
Citations
PageRank
Jae-Ha Lee114414.19
Chan-su Shin220626.76
Jae-Hoon Kim326865.73
Sung Yong Shin41904168.33
Kyung-Yong Chwa591997.10