Sciweavers

1671 search results - page 55 / 335
» On the Covering Steiner Problem
Sort
View
131
Voted
STOC
2006
ACM
186views Algorithms» more  STOC 2006»
16 years 29 days ago
A subset spanner for Planar graphs, : with application to subset TSP
Let > 0 be a constant. For any edge-weighted planar graph G and a subset S of nodes of G, there is a subgraph H of G of weight a constant times that of the minimum Steiner tree...
Philip N. Klein
82
Voted
WINET
2008
86views more  WINET 2008»
15 years 16 days ago
Relay sensor placement in wireless sensor networks
This paper addresses the following relay sensor placement problem: given the set of duty sensors in the plane and the upper bound of the transmission range, compute the minimum nu...
Xiuzhen Cheng, Ding-Zhu Du, Lusheng Wang, Baogang ...
126
Voted
DCOSS
2011
Springer
14 years 14 days ago
STARS: Static relays for multi-robot real-time search and monitoring
Abstract—We first present a problem called precedence constrained two traveling salesman (PC2TSP). We propose a nearoptimal heuristic to PC2TSP to generate tours by clustering p...
Yuanteng Pei, Matt W. Mutka
WEA
2007
Springer
111views Algorithms» more  WEA 2007»
15 years 6 months ago
Vertex Cover Approximations on Random Graphs
Abstract. The vertex cover problem is a classical NP-complete problem for which the best worst-case approximation ratio is 2− o(1). In this paper, we use a collection of simple g...
Eyjolfur Asgeirsson, Clifford Stein
108
Voted
CCCG
2001
15 years 2 months ago
Translational polygon covering using intersection graphs
We investigate the following translational 2D polygon covering problem: for a collection of covering polygons and a target point (or polygon) set, decide if the covering polygons ...
Karen Daniels, Rajasekhar Inkulu