Approximation Algorithms for Shortest Descending Paths in Terrains
Mustaq AhmedSandip DasSachin LodhaAnna LubiwAnil MaheshwariSasanka RoyPublished in: CoRR (2008)
Keyphrases
- approximation algorithms
- shortest path
- disjoint paths
- path length
- np hard
- special case
- worst case
- minimum cost
- facility location problem
- vertex cover
- set cover
- open shop
- exact algorithms
- np hardness
- approximation ratio
- combinatorial auctions
- primal dual
- approximation schemes
- network design problem
- randomized algorithms
- precedence constraints
- constant factor
- traveling salesman problem
- undirected graph
- integer programming
- linear programming