Sciweavers

55 search results - page 4 / 11
» orl 2008
Sort
View
55
Voted
ORL
2008
67views more  ORL 2008»
15 years 22 days ago
Bounds on the performance of back-to-front airplane boarding policies
We provide bounds on the performance of back-to-front airplane boarding policies. In particular, we show that no back-to-front policy can be more than 20% better than the policy w...
Eitan Bachmat, Michael Elkin
109
Voted
ORL
2008
112views more  ORL 2008»
15 years 22 days ago
A monotone approximation algorithm for scheduling with precedence constraints
We provide a monotone O(m2/3 )-approximation algorithm for scheduling related machines with precedence constraints.
Sven Oliver Krumke, Anne Schwahn, Rob van Stee, St...
97
Voted
ORL
2008
86views more  ORL 2008»
15 years 7 days ago
Searching the k-change neighborhood for TSP is W[1]-hard
We show that searching the k-change neighborhood is W[1]-hard for metric TSP, which means that finding the best tour in the k-change neighborhood essentially requires complete sea...
Dániel Marx
ORL
2008
115views more  ORL 2008»
15 years 7 days ago
On the convergence of stochastic dual dynamic programming and related methods
We discuss the almost-sure convergence of a broad class of sampling algorithms for multi-stage stochastic linear programs. We provide a convergence proof based on the finiteness o...
Andrew B. Philpott, Z. Guan
94
Voted
ORL
2008
87views more  ORL 2008»
14 years 11 months ago
On-line scheduling with non-crossing constraints
We consider the problem of on-line scheduling with non-crossing constraints. The objective is to minimize the latest completion time. We provide optimal competitive ratio heuristi...
Lele Zhang, Kwanniti Khammuang, Andrew Wirth