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FOCS
2003
IEEE
15 years 12 months ago
Approximation Algorithms for Orienteering and Discounted-Reward TSP
In this paper, we give the rst constant-factor approximationalgorithmfor the rooted Orienteering problem, as well as a new problem that we call the Discounted-Reward TSP, motivate...
Avrim Blum, Shuchi Chawla, David R. Karger, Terran...
WADS
2001
Springer
113views Algorithms» more  WADS 2001»
15 years 11 months ago
Movement Planning in the Presence of Flows
This paper investigates the problem of time-optimum movement planning in two and three dimensions for a point robot which has bounded control velocity through a set of n polygonal...
John H. Reif, Zheng Sun
IJCAI
2007
15 years 8 months ago
Handling Alternative Activities in Resource-Constrained Project Scheduling Problems
In the context of operative disruption management, decision support systems have to evaluate the typically manifold options of responding to disturbances: The temporal shift of ac...
Jürgen Kuster, Dietmar Jannach, Gerhard Fried...
NETWORKS
2006
15 years 6 months ago
The multiroute maximum flow problem revisited
We are given a directed network G = (V, A, u) with vertex set V , arc set A, a source vertex s V , a destination vertex t V , a finite capacity vector u = {uij}ijA, and a positi...
Donglei Du, R. Chandrasekaran
ALGORITHMICA
2006
160views more  ALGORITHMICA 2006»
15 years 6 months ago
Combinatorial Algorithms for the Unsplittable Flow Problem
We provide combinatorial algorithms for the unsplittable flow problem (UFP) that either match or improve the previously best results. In the UFP we are given a (possibly directed)...
Yossi Azar, Oded Regev