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» Universal approximations for TSP, Steiner tree, and set cove...
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STOC
2005
ACM
89views Algorithms» more  STOC 2005»
14 years 4 months ago
Universal approximations for TSP, Steiner tree, and set cover
Lujun Jia, Guolong Lin, Guevara Noubir, Rajmohan R...
ESA
2003
Springer
189views Algorithms» more  ESA 2003»
13 years 9 months ago
On the Complexity of Approximating TSP with Neighborhoods and Related Problems
We prove that various geometric covering problems, related to the Travelling Salesman Problem cannot be efficiently approximated to within any constant factor unless P = NP. This ...
Shmuel Safra, Oded Schwartz
ICALP
2005
Springer
13 years 10 months ago
Approximation Algorithms for Euclidean Group TSP
In the Euclidean group Traveling Salesman Problem (TSP), we are given a set of points P in the plane and a set of m connected regions, each containing at least one point of P. We w...
Khaled M. Elbassioni, Aleksei V. Fishkin, Nabil H....
FSTTCS
2003
Springer
13 years 9 months ago
On the Covering Steiner Problem
The Covering Steiner problem is a common generalization of the k-MST and Group Steiner problems. An instance of the Covering Steiner problem consists of an undirected graph with ed...
Anupam Gupta, Aravind Srinivasan
ICALP
2010
Springer
13 years 9 months ago
Thresholded Covering Algorithms for Robust and Max-min Optimization
The general problem of robust optimization is this: one of several possible scenarios will appear tomorrow, but things are more expensive tomorrow than they are today. What should...
Anupam Gupta, Viswanath Nagarajan, R. Ravi