Title of article :
The Tourist in the Shopping Arcade
Author/Authors :
Fleischer, Rudolf Fudan University, China , Kamphans, Tom Braunschweig University of Technology, Germany , Klein, Rolf University of Bonn, Germany , Langetepe, Elmar University of Bonn, Germany , Trippen, Gerhard University of British Columbia, Canada
Abstract :
A tourist is searching for a gift and moves along a shopping arcade until the desired object gets into sight. The location of the corresponding shop is not known in advance. Therefore in this on-line setting the tourist has to make a detour in comparison to an optimal off-line straight line path to the desired object. We can show that there is a strategy for the tourist, so that the path length is never greater than C* times the optimal off-line path length, where C* =1.059401 ... holds. Furthermore, there is no strategy that attains a competitive factor smaller than C*.
Keywords :
Computational geometry , on , line algorithms , on , line navigation.
Journal title :
International Journal of Universal Computer Sciences
Journal title :
International Journal of Universal Computer Sciences
